Techniques for granting resources for internet of things communications

ABSTRACT

Methods, systems, and devices for wireless communications are described. In some examples, a base station may transmit, to a secondary user equipment (UE), a first grant to conditionally transmit one or more data messages over a first set of resources upon completion of a detection procedure. The detection procedure may include monitoring a second set of resources for over-the-air (OTA) signals transmitted by a primary UE pursuant to a second grant, where the first set of resources at least partially overlaps the second set of resources. The UE may monitor for the OTA signals from the primary UE, determine that one or more conditions for transmission of the one or more data messages have been satisfied, and transmit the one or more data messages over the first set of resources.

FIELD OF TECHNOLOGY

The following relates to wireless communications, including techniquesfor granting resources for Internet of Things (IoT) communications.

BACKGROUND

Wireless communications systems are widely deployed to provide varioustypes of communication content such as voice, video, packet data,messaging, broadcast, and so on. These systems may be capable ofsupporting communication with multiple users by sharing the availablesystem resources (e.g., time, frequency, and power). Examples of suchmultiple-access systems include fourth generation (4G) systems such asLong Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, orLTE-A Pro systems, and fifth generation (5G) systems which may bereferred to as New Radio (NR) systems. These systems may employtechnologies such as code division multiple access (CDMA), time divisionmultiple access (TDMA), frequency division multiple access (FDMA),orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonalfrequency division multiplexing (DFT-S-OFDM). A wireless multiple-accesscommunications system may include one or more base stations or one ormore network access nodes, each simultaneously supporting communicationfor multiple communication devices, which may be otherwise known as userequipment (UE).

Some wireless communications systems may support Internet of Things(IoT) devices. IoT devices may be described as everyday objects thathave the ability to transmit and receive data. In some examples, datamay arrive at IoT devices sporadically with strict latency requirementsand current scheduling of IoT devices for such data traffic may beinefficient.

SUMMARY

The described techniques relate to improved methods, systems, devices,and apparatuses that support techniques for granting resources forInternet of Things (IoT) communications. Generally, the describedtechniques provide for a wireless communications system to applyover-provisioning resource allocation techniques when issuing a dynamicgrant. In some examples, a base station may predict that data willarrive at a first UE and may transmit a dynamic grant to the first UE totransmit the data over a first set of resources. Additionally, the basestation may transmit a conditional grant to a second UE to conditionallytransmit data over a second set of resources upon completion of adetection procedure, where the second set of resources at leastpartially overlaps the first set of resources. The detection proceduremay include monitoring at least a portion of the first set of resourcesfor one or more over-the-air (OTA) messages. The second UE may performthe detection procedure and determine whether one or more conditions ofthe conditional grant are satisfied. In one example, the one or moreconditions of the conditional grant may be satisfied if the second UEfails to detect the one or more OTA message as part of the detectionprocedure. If the one or more conditions of the conditional grant aresatisfied, the second UE may transmit the data over the second set ofresources.

A method for wireless communication at a secondary UE is described. Themethod may include receiving, at the secondary UE, a first grant toconditionally transmit one or more data messages over a first set ofresources, transmission of the one or more data messages conditional oncompletion, by the secondary UE, of a detection procedure to monitor asecond set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources, monitoring, as part of the detection procedure,for the one or more OTA signals from the primary UE, the one or more OTAsignals indicative of whether the second set of resources is used by theprimary UE, determining, based on the monitoring, that one or moreconditions for transmission of the one or more data messages have beensatisfied via the detection procedure, and transmitting the one or moredata messages over the first set of resources based on the one or moreconditions being satisfied.

An apparatus for wireless communication at a secondary UE is described.The apparatus may include a processor, memory coupled with theprocessor, and instructions stored in the memory. The instructions maybe executable by the processor to cause the apparatus to receive, at thesecondary UE, a first grant to conditionally transmit one or more datamessages over a first set of resources, transmission of the one or moredata messages conditional on completion, by the secondary UE, of adetection procedure to monitor a second set of resources for one or moreOTA signals transmitted by a primary UE pursuant to a second grant thatis associated with the first grant, where the first set of resources atleast partially overlaps the second set of resources, monitor, as partof the detection procedure, for the one or more OTA signals from theprimary UE, the one or more OTA signals indicative of whether the secondset of resources is used by the primary UE, determine, based on themonitoring, that one or more conditions for transmission of the one ormore data messages have been satisfied via the detection procedure, andtransmit the one or more data messages over the first set of resourcesbased on the one or more conditions being satisfied.

Another apparatus for wireless communication at a secondary UE isdescribed. The apparatus may include means for receiving, at thesecondary UE, a first grant to conditionally transmit one or more datamessages over a first set of resources, transmission of the one or moredata messages conditional on completion, by the secondary UE, of adetection procedure to monitor a second set of resources for one or moreOTA signals transmitted by a primary UE pursuant to a second grant thatis associated with the first grant, where the first set of resources atleast partially overlaps the second set of resources, means formonitoring, as part of the detection procedure, for the one or more OTAsignals from the primary UE, the one or more OTA signals indicative ofwhether the second set of resources is used by the primary UE, means fordetermining, based on the monitoring, that one or more conditions fortransmission of the one or more data messages have been satisfied viathe detection procedure, and means for transmitting the one or more datamessages over the first set of resources based on the one or moreconditions being satisfied.

A non-transitory computer-readable medium storing code for wirelesscommunication at a secondary UE is described. The code may includeinstructions executable by a processor to receive, at the secondary UE,a first grant to conditionally transmit one or more data messages over afirst set of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources, monitor, as partof the detection procedure, for the one or more OTA signals from theprimary UE, the one or more OTA signals indicative of whether the secondset of resources is used by the primary UE, determine, based on themonitoring, that one or more conditions for transmission of the one ormore data messages have been satisfied via the detection procedure, andtransmit the one or more data messages over the first set of resourcesbased on the one or more conditions being satisfied.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, determining that the one ormore conditions may have been satisfied may include operations,features, means, or instructions for failing to detect the one or moreOTA signals from the primary UE.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring for the one ormore OTA signals from the primary UE may include operations, features,means, or instructions for monitoring, as part of the detectionprocedure, during a time gap that extends from a beginning of the secondset of resources and a subsequent beginning of the first set ofresources.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources during the time gap for the oneor more OTA signals by the primary UE, where the one or more conditionsmay be satisfied via the detection procedure upon failure by thesecondary UE to detect the one or more OTA signals by the primary UEduring the time gap.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources for a listen-before-talk (LBT)transmission during the time gap, where the time gap may be defined by acyclic prefix (CP) extension for use by the primary UE to transmit theLBT transmission, where the one or more conditions may be satisfied viathe detection procedure upon failure by the secondary UE to detect anenergy level during the time gap that may be above a threshold.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources during the time gap for the oneor more OTA signals by the primary UE, where the time gap includesmultiple transmission opportunities for the primary UE, where the one ormore conditions may be satisfied via the detection procedure uponfailure by the secondary UE to detect any of the one or more OTA signalsby the primary UE during the time gap.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources during the time gap for one ormore demodulation reference signal (DMRS) sequences associated with theprimary UE, where the second set of resources may be aggregated uplinkslots and the time gap may be at least one slot in duration, where theone or more conditions may be satisfied via the detection procedure uponfailure by the secondary UE to detect the one or more DMRS sequencesduring the time gap.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources during the time gap for asidelink control information (SCI) message by the primary UE, where theone or more conditions may be satisfied via the detection procedure uponfailure by the secondary UE to detect the SCI message during the timegap.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring during the timegap may include operations, features, means, or instructions formonitoring the second set of resources during the time gap for both aSCI message by the primary UE and an acknowledgement (ACK) feedbackmessage associated with the SCI message, where the one or moreconditions may be satisfied via the detection procedure upon detectionby the secondary UE of the ACK feedback message during the time gap.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for determining a resourceto monitor for the ACK feedback message by either decoding the SCImessage or through the first grant.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring for the one ormore OTA signals from the primary UE may include operations, features,means, or instructions for monitoring, as part of the detectionprocedure, for an early occupancy indication transmitted by the primaryUE prior in time to both the first set of resources and the second setof resources.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring for the earlyoccupancy indication may include operations, features, means, orinstructions for monitoring for a sounding reference signal (SRS) fromthe primary UE, where the one or more conditions may be satisfied viathe detection procedure upon failure by the secondary UE to detect theSRS as the early occupancy indication from the primary UE.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, monitoring for the earlyoccupancy indication may include operations, features, means, orinstructions for monitoring a sidelink feedback channel resource for theearly occupancy indication from the primary UE, where the one or moreconditions may be satisfied via the detection procedure upon failurebased on a content of the sidelink feedback channel resource.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving, via thefirst grant, a first uplink control channel resource for transmission bythe secondary UE of a first indication confirming transmission of theone or more data messages over the first set of resources, where thesecond grant also includes a second uplink control channel resource fortransmission by the primary UE of a second indication confirmingtransmission over the second set of resources.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the first indication by thesecondary UE may be a scheduling request (SR) for retransmission of theone or more data messages.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving, via thefirst grant, a first uplink control channel resource for transmission bythe secondary UE of a message indicating whether the one or moreconditions may be satisfied.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, receiving the first grant mayinclude operations, features, means, or instructions for receiving adownlink control information (DCI) message that includes both the firstgrant and the second grant.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the DCI message may bescrambled by a group common random network temporary identifier(GC-RNTI) that may be allocated to at least the secondary UE and theprimary UE as supporting non-provisioning proactive dynamic grants andthat may have downlink control channel aggregation levels that may bewithin common thresholds.

A method for wireless communication at a base station is described. Themethod may include transmitting, to a secondary UE, a first grant forconditional transmission of one or more data messages over a first setof resources, transmission of the one or more data messages conditionalon completion, by the secondary UE, of a detection procedure to monitora second set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources and transmitting the second grant to the primaryUE, the second grant including a parameter indicating that transmissionby the primary UE using the second set of resources is optional.

An apparatus for wireless communication at a base station is described.The apparatus may include a processor, memory coupled with theprocessor, and instructions stored in the memory. The instructions maybe executable by the processor to cause the apparatus to transmit, to asecondary UE, a first grant for conditional transmission of one or moredata messages over a first set of resources, transmission of the one ormore data messages conditional on completion, by the secondary UE, of adetection procedure to monitor a second set of resources for one or moreOTA signals transmitted by a primary UE pursuant to a second grant thatis associated with the first grant, where the first set of resources atleast partially overlaps the second set of resources and transmit thesecond grant to the primary UE, the second grant including a parameterindicating that transmission by the primary UE using the second set ofresources is optional.

Another apparatus for wireless communication at a base station isdescribed. The apparatus may include means for transmitting, to asecondary UE, a first grant for conditional transmission of one or moredata messages over a first set of resources, transmission of the one ormore data messages conditional on completion, by the secondary UE, of adetection procedure to monitor a second set of resources for one or moreOTA signals transmitted by a primary UE pursuant to a second grant thatis associated with the first grant, where the first set of resources atleast partially overlaps the second set of resources and means fortransmitting the second grant to the primary UE, the second grantincluding a parameter indicating that transmission by the primary UEusing the second set of resources is optional.

A non-transitory computer-readable medium storing code for wirelesscommunication at a base station is described. The code may includeinstructions executable by a processor to transmit, to a secondary UE, afirst grant for conditional transmission of one or more data messagesover a first set of resources, transmission of the one or more datamessages conditional on completion, by the secondary UE, of a detectionprocedure to monitor a second set of resources for one or more OTAsignals transmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources and transmit thesecond grant to the primary UE, the second grant including a parameterindicating that transmission by the primary UE using the second set ofresources is optional.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, transmitting the second grantto the primary UE may include operations, features, means, orinstructions for transmitting the parameter as a bit field whichindicates that use of the second set of resources by the primary UE maybe based on whether the primary UE may have content to transmit duringthe second set of resources.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, transmitting the first grantfor conditional transmission of the one or more data messages mayinclude operations, features, means, or instructions for transmittingthe first grant as a conditional grant that may be conditional on thesecondary UE failing to detect, via the detection procedure, use of thesecond set of resources by the primary UE.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, a time gap extends from abeginning of the second set of resources and a subsequent beginning ofthe first set of resources.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, transmitting the first grantfor conditional transmission of the one or more data messages mayinclude operations, features, means, or instructions for transmittingthe first grant as a conditional grant that may be conditional on thesecondary UE failing to detect, via the detection procedure, one or moreOTA signals by the primary UE during the time gap.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, transmitting the first grantfor conditional transmission of the one or more data messages mayinclude operations, features, means, or instructions for transmittingthe first grant as a conditional grant that may be conditional on thesecondary UE failing to detect, via the detection procedure, an LBTtransmission by the primary UE during the time gap, where the time gapmay be defined by a cyclic prefix extension for use by the primary UE totransmit the LBT transmission.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the time gap includesmultiple transmission opportunities for the primary UE.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the second set of resourcesmay be aggregated uplink slots and the time gap may be at least one slotin duration.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for transmitting, via thefirst grant, a first uplink control channel resource for use by thesecondary UE to transmit a first indication confirming transmission ofthe one or more data messages over the first set of resources andtransmitting, via the second grant, a second uplink control channelresource for use by the primary UE to transmit a second indicationconfirming transmission over the second set of resources.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving the firstindication from the secondary UE via an SR for retransmission of the oneor more data messages.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for transmitting, via thefirst grant, a first uplink control channel resource for use by thesecondary UE to transmit a message indicating whether one or moreconditions associated with the conditional transmission of the one ormore data messages over the first set of resources may be satisfied.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the first grant and thesecond grant may be transmitted in a same DCI message.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the DCI message may bescrambled by a GC-RNTI that may be allocated to at least the secondaryUE and the primary UE as supporting non-provisioning proactive dynamicgrants and that may have downlink control channel aggregation levelsthat may be within common thresholds.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1 and 2 illustrate examples of a wireless communications systemthat supports techniques for granting resources for Internet of Things(IoT) communications in accordance with aspects of the presentdisclosure.

FIGS. 3A, 3B, 3C, 3D and 4A, 4B, and 4C illustrate examples of adetection procedure that supports techniques for granting resources forIoT communications in accordance with aspects of the present disclosure.

FIG. 5 illustrates an example of a process flow that supports techniquesfor granting resources for IoT communications in accordance with aspectsof the present disclosure.

FIGS. 6 and 7 show block diagrams of devices that support techniques forgranting resources for IoT communications in accordance with aspects ofthe present disclosure.

FIG. 8 shows a block diagram of a communications manager that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure.

FIG. 9 shows a diagram of a system including a device that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure.

FIGS. 10 and 11 show block diagrams of devices that support techniquesfor granting resources for IoT communications in accordance with aspectsof the present disclosure.

FIG. 12 shows a block diagram of a communications manager that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure.

FIG. 13 shows a diagram of a system including a device that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure.

FIGS. 14 through 19 show flowcharts illustrating methods that supporttechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure.

DETAILED DESCRIPTION

In some examples, a user equipment (UE) may be an Internet of Things(IoT) device. Some IoT devices may regularly report uplink data and maybenefit from a configured grant, which allocates resources to the UE forregular uplink messages. However, for IoT devices that report datasporadically, resources allocated via configured grant may be unused.Dynamic granting of resources may, in some cases, be appropriate. Indynamic grants, the UE may determine that it has data to transmit andmay send a scheduling request (SR) to a base station, requestingresources for uplink transmission. The base station may then provide,dynamically, a grant of resources for the UE to use for uplinktransmission. However, the back-and-forth that arises from transmissionof an SR and then awaiting a resource grant may not be appropriate forIoT devices having strict latency requirements.

As described herein, a wireless communications system may utilizeover-provisioning techniques when providing a proactive dynamic grant toa UE. For example, UEs operating in an IoT system may receive coupledcontrol information for transmitting pending data over partiallyoverlapping resources. Control information received by a UE may becoupled, via a conditional grant, to control information sent to adifferent UE. For example, a first UE may receive a proactive dynamicgrant to transmit data over a first set of resources and a second UE mayreceive a conditional grant to transmit data over a second set ofresources if the second UE does not detect an over-the-air (OTA) messagefrom the first UE. The first set of resources and the second set ofresources may at least partially overlap. The first UE may determinewhether it has pending data. If the first UE does not have pending data,the first UE may skip the proactive dynamic grant and may not transmitdata. As such, the second UE may not detect an OTA message from thefirst UE and may transmit over the second set of resources. In someexamples, the OTA message may be a demodulation reference signal (DMRS),a listen-before-talk (LBT) transmission, sidelink control information(SCI), a hybrid automatic repeat request (HARQ) response, or an earlyoccupancy indication (e.g., a sounding reference signal (SRS)).

Aspects of the disclosure are initially described in the context ofwireless communications systems. Additional aspects of the disclosureare described in the context of detection procedures and a process flow.Aspects of the disclosure are further illustrated by and described withreference to apparatus diagrams, system diagrams, and flowcharts thatrelate to techniques for granting resources for IoT communications.

FIG. 1 illustrates an example of a wireless communications system 100that supports techniques for granting resources for IoT communicationsin accordance with aspects of the present disclosure. The wirelesscommunications system 100 may include one or more base stations 105, oneor more UEs 115, and a core network 130. In some examples, the wirelesscommunications system 100 may be a Long Term Evolution (LTE) network, anLTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR)network. In some examples, the wireless communications system 100 maysupport enhanced broadband communications, ultra-reliable (e.g., missioncritical) communications, low latency communications, communicationswith low-cost and low-complexity devices, or any combination thereof.

The base stations 105 may be dispersed throughout a geographic area toform the wireless communications system 100 and may be devices indifferent forms or having different capabilities. The base stations 105and the UEs 115 may wirelessly communicate via one or more communicationlinks 125. Each base station 105 may provide a coverage area 110 overwhich the UEs 115 and the base station 105 may establish one or morecommunication links 125. The coverage area 110 may be an example of ageographic area over which a base station 105 and a UE 115 may supportthe communication of signals according to one or more radio accesstechnologies.

The UEs 115 may be dispersed throughout a coverage area 110 of thewireless communications system 100, and each UE 115 may be stationary,or mobile, or both at different times. The UEs 115 may be devices indifferent forms or having different capabilities. Some example UEs 115are illustrated in FIG. 1. The UEs 115 described herein may be able tocommunicate with various types of devices, such as other UEs 115, thebase stations 105, or network equipment (e.g., core network nodes, relaydevices, integrated access and backhaul (IAB) nodes, or other networkequipment), as shown in FIG. 1.

The base stations 105 may communicate with the core network 130, or withone another, or both. For example, the base stations 105 may interfacewith the core network 130 through one or more backhaul links 120 (e.g.,via an S1, N2, N3, or other interface). The base stations 105 maycommunicate with one another over the backhaul links 120 (e.g., via anX2, Xn, or other interface) either directly (e.g., directly between basestations 105), or indirectly (e.g., via core network 130), or both. Insome examples, the backhaul links 120 may be or include one or morewireless links.

One or more of the base stations 105 described herein may include or maybe referred to by a person having ordinary skill in the art as a basetransceiver station, a radio base station, an access point, a radiotransceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or agiga-NodeB (either of which may be referred to as a gNB), a Home NodeB,a Home eNodeB, or other suitable terminology.

A UE 115 may include or may be referred to as a mobile device, awireless device, a remote device, a handheld device, or a subscriberdevice, or some other suitable terminology, where the “device” may alsobe referred to as a unit, a station, a terminal, or a client, amongother examples. A UE 115 may also include or may be referred to as apersonal electronic device such as a cellular phone, a personal digitalassistant (PDA), a tablet computer, a laptop computer, or a personalcomputer. In some examples, a UE 115 may include or be referred to as awireless local loop (WLL) station, an IoT device, an Internet ofEverything (IoE) device, or a machine type communications (MTC) device,among other examples, which may be implemented in various objects suchas appliances, or vehicles, meters, among other examples.

The UEs 115 described herein may be able to communicate with varioustypes of devices, such as other UEs 115 that may sometimes act as relaysas well as the base stations 105 and the network equipment includingmacro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations,among other examples, as shown in FIG. 1.

The UEs 115 and the base stations 105 may wirelessly communicate withone another via one or more communication links 125 over one or morecarriers. The term “carrier” may refer to a set of radio frequencyspectrum resources having a defined physical layer structure forsupporting the communication links 125. For example, a carrier used fora communication link 125 may include a portion of a radio frequencyspectrum band (e.g., a bandwidth part (BWP)) that is operated accordingto one or more physical layer channels for a given radio accesstechnology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layerchannel may carry acquisition signaling (e.g., synchronization signals,system information), control signaling that coordinates operation forthe carrier, user data, or other signaling. The wireless communicationssystem 100 may support communication with a UE 115 using carrieraggregation or multi-carrier operation. A UE 115 may be configured withmultiple downlink component carriers and one or more uplink componentcarriers according to a carrier aggregation configuration. Carrieraggregation may be used with both frequency division duplexing (FDD) andtime division duplexing (TDD) component carriers.

Signal waveforms transmitted over a carrier may be made up of multiplesubcarriers (e.g., using multi-carrier modulation (MCM) techniques suchas orthogonal frequency division multiplexing (OFDM) or discrete Fouriertransform spread OFDM (DFT-S-OFDM)). In a system employing MCMtechniques, a resource element may include one symbol period (e.g., aduration of one modulation symbol) and one subcarrier, where the symbolperiod and subcarrier spacing are inversely related. The number of bitscarried by each resource element may depend on the modulation scheme(e.g., the order of the modulation scheme, the coding rate of themodulation scheme, or both). Thus, the more resource elements that a UE115 receives and the higher the order of the modulation scheme, thehigher the data rate may be for the UE 115. A wireless communicationsresource may refer to a combination of a radio frequency spectrumresource, a time resource, and a spatial resource (e.g., spatial layersor beams), and the use of multiple spatial layers may further increasethe data rate or data integrity for communications with a UE 115.

The time intervals for the base stations 105 or the UEs 115 may beexpressed in multiples of a basic time unit which may, for example,refer to a sampling period of T_(s)=1/(Δf_(max)·N_(f)) seconds, whereΔf_(max) may represent the maximum supported subcarrier spacing, andN_(f) may represent the maximum supported discrete Fourier transform(DFT) size. Time intervals of a communications resource may be organizedaccording to radio frames each having a specified duration (e.g., 10milliseconds (ms)). Each radio frame may be identified by a system framenumber (SFN) (e.g., ranging from 0 to 1023).

Each frame may include multiple consecutively numbered subframes orslots, and each subframe or slot may have the same duration. In someexamples, a frame may be divided (e.g., in the time domain) intosubframes, and each subframe may be further divided into a number ofslots. Alternatively, each frame may include a variable number of slots,and the number of slots may depend on subcarrier spacing. Each slot mayinclude a number of symbol periods (e.g., depending on the length of thecyclic prefix (CP) prepended to each symbol period). In some wirelesscommunications systems 100, a slot may further be divided into multiplemini-slots containing one or more symbols. Excluding the CP, each symbolperiod may contain one or more (e.g., N_(f)) sampling periods. Theduration of a symbol period may depend on the subcarrier spacing orfrequency band of operation.

A subframe, a slot, a mini-slot, or a symbol may be the smallestscheduling unit (e.g., in the time domain) of the wirelesscommunications system 100 and may be referred to as a transmission timeinterval (TTI). In some examples, the TTI duration (e.g., the number ofsymbol periods in a TTI) may be variable. Additionally or alternatively,the smallest scheduling unit of the wireless communications system 100may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

Physical channels may be multiplexed on a carrier according to varioustechniques. A physical control channel and a physical data channel maybe multiplexed on a downlink carrier, for example, using one or more oftime division multiplexing (TDM) techniques, frequency divisionmultiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A controlregion (e.g., a control resource set (CORESET)) for a physical controlchannel may be defined by a number of symbol periods and may extendacross the system bandwidth or a subset of the system bandwidth of thecarrier. One or more control regions (e.g., CORESETs) may be configuredfor a set of the UEs 115. For example, one or more of the UEs 115 maymonitor or search control regions for control information according toone or more search space sets, and each search space set may include oneor multiple control channel candidates in one or more aggregation levelsarranged in a cascaded manner. An aggregation level for a controlchannel candidate may refer to a number of control channel resources(e.g., control channel elements (CCEs)) associated with encodedinformation for a control information format having a given payloadsize. Search space sets may include common search space sets configuredfor sending control information to multiple UEs 115 and UE-specificsearch space sets for sending control information to a specific UE 115.

In some examples, a base station 105 may be movable and thereforeprovide communication coverage for a moving geographic coverage area110. In some examples, different geographic coverage areas 110associated with different technologies may overlap, but the differentgeographic coverage areas 110 may be supported by the same base station105. In other examples, the overlapping geographic coverage areas 110associated with different technologies may be supported by differentbase stations 105. The wireless communications system 100 may include,for example, a heterogeneous network in which different types of thebase stations 105 provide coverage for various geographic coverage areas110 using the same or different radio access technologies.

Some UEs 115, such as MTC or IoT devices, may be low cost or lowcomplexity devices and may provide for automated communication betweenmachines (e.g., via Machine-to-Machine (M2M) communication). M2Mcommunication or MTC may refer to data communication technologies thatallow devices to communicate with one another or a base station 105without human intervention. In some examples, M2M communication or MTCmay include communications from devices that integrate sensors or metersto measure or capture information and relay such information to acentral server or application program that makes use of the informationor presents the information to humans interacting with the applicationprogram. Some UEs 115 may be designed to collect information or enableautomated behavior of machines or other devices. Examples ofapplications for MTC devices include smart metering, inventorymonitoring, water level monitoring, equipment monitoring, healthcaremonitoring, wildlife monitoring, weather and geological eventmonitoring, fleet management and tracking, remote security sensing,physical access control, and transaction-based business charging.

The wireless communications system 100 may be configured to supportultra-reliable communications or low-latency communications, or variouscombinations thereof. For example, the wireless communications system100 may be configured to support ultra-reliable low-latencycommunications (URLLC) or mission critical communications. The UEs 115may be designed to support ultra-reliable, low-latency, or criticalfunctions (e.g., mission critical functions). Ultra-reliablecommunications may include private communication or group communicationand may be supported by one or more mission critical services such asmission critical push-to-talk (MCPTT), mission critical video (MCVideo),or mission critical data (MCData). Support for mission criticalfunctions may include prioritization of services, and mission criticalservices may be used for public safety or general commercialapplications. The terms ultra-reliable, low-latency, mission critical,and ultra-reliable low-latency may be used interchangeably herein.

In some examples, a UE 115 may also be able to communicate directly withother UEs 115 over a device-to-device (D2D) communication link 135(e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115utilizing D2D communications may be within the geographic coverage area110 of a base station 105. Other UEs 115 in such a group may be outsidethe geographic coverage area 110 of a base station 105 or be otherwiseunable to receive transmissions from a base station 105. In someexamples, groups of the UEs 115 communicating via D2D communications mayutilize a one-to-many (1:M) system in which each UE 115 transmits toevery other UE 115 in the group. In some examples, a base station 105facilitates the scheduling of resources for D2D communications. In othercases, D2D communications are carried out between the UEs 115 withoutthe involvement of a base station 105.

In some systems, the D2D communication link 135 may be an example of acommunication channel, such as a sidelink communication channel, betweenvehicles (e.g., UEs 115). In some examples, vehicles may communicateusing vehicle-to-everything (V2X) communications, vehicle-to-vehicle(V2V) communications, or some combination of these. A vehicle may signalinformation related to traffic conditions, signal scheduling, weather,safety, emergencies, or any other information relevant to a V2X system.In some examples, vehicles in a V2X system may communicate with roadsideinfrastructure, such as roadside units, or with the network via one ormore network nodes (e.g., base stations 105) using vehicle-to-network(V2N) communications, or with both.

The core network 130 may provide user authentication, accessauthorization, tracking, Internet Protocol (IP) connectivity, and otheraccess, routing, or mobility functions. The core network 130 may be anevolved packet core (EPC) or 5G core (5GC), which may include at leastone control plane entity that manages access and mobility (e.g., amobility management entity (MME), an access and mobility managementfunction (AMF)) and at least one user plane entity that routes packetsor interconnects to external networks (e.g., a serving gateway (S-GW), aPacket Data Network (PDN) gateway (P-GW), or a user plane function(UPF)). The control plane entity may manage non-access stratum (NAS)functions such as mobility, authentication, and bearer management forthe UEs 115 served by the base stations 105 associated with the corenetwork 130. User IP packets may be transferred through the user planeentity, which may provide IP address allocation as well as otherfunctions. The user plane entity may be connected to IP services 150 forone or more network operators. The IP services 150 may include access tothe Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or aPacket-Switched Streaming Service.

Some of the network devices, such as a base station 105, may includesubcomponents such as an access network entity 140, which may be anexample of an access node controller (ANC). Each access network entity140 may communicate with the UEs 115 through one or more other accessnetwork transmission entities 145, which may be referred to as radioheads, smart radio heads, or transmission/reception points (TRPs). Eachaccess network transmission entity 145 may include one or more antennapanels. In some configurations, various functions of each access networkentity 140 or base station 105 may be distributed across various networkdevices (e.g., radio heads and ANCs) or consolidated into a singlenetwork device (e.g., a base station 105).

The wireless communications system 100 may operate using one or morefrequency bands, for example in the range of 300 megahertz (MHz) to 300gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known asthe ultra-high frequency (UHF) region or decimeter band because thewavelengths range from approximately one decimeter to one meter inlength. The UHF waves may be blocked or redirected by buildings andenvironmental features, but the waves may penetrate structuressufficiently for a macro cell to provide service to the UEs 115 locatedindoors. The transmission of UHF waves may be associated with smallerantennas and shorter ranges (e.g., less than 100 kilometers) compared totransmission using the smaller frequencies and longer waves of the highfrequency (HF) or very high frequency (VHF) portion of the spectrumbelow 300 MHz.

The wireless communications system 100 may utilize both licensed andunlicensed radio frequency spectrum bands. For example, the wirelesscommunications system 100 may employ License Assisted Access (LAA),LTE-Unlicensed (LTE-U) radio access technology, or NR technology in anunlicensed band such as the 5 GHz industrial, scientific, and medical(ISM) band. When operating in unlicensed radio frequency spectrum bands,devices such as the base stations 105 and the UEs 115 may employ carriersensing for collision detection and avoidance. In some examples,operations in unlicensed bands may be based on a carrier aggregationconfiguration in conjunction with component carriers operating in alicensed band (e.g., LAA). Operations in unlicensed spectrum may includedownlink transmissions, uplink transmissions, P2P transmissions, or D2Dtransmissions, among other examples.

A base station 105 or a UE 115 may be equipped with multiple antennas,which may be used to employ techniques such as transmit diversity,receive diversity, multiple-input multiple-output (MIMO) communications,or beamforming. The antennas of a base station 105 or a UE 115 may belocated within one or more antenna arrays or antenna panels, which maysupport MIMO operations or transmit or receive beamforming. For example,one or more base station antennas or antenna arrays may be co-located atan antenna assembly, such as an antenna tower. In some examples,antennas or antenna arrays associated with a base station 105 may belocated in diverse geographic locations. A base station 105 may have anantenna array with a number of rows and columns of antenna ports thatthe base station 105 may use to support beamforming of communicationswith a UE 115. Likewise, a UE 115 may have one or more antenna arraysthat may support various MIMO or beamforming operations. Additionally oralternatively, an antenna panel may support radio frequency beamformingfor a signal transmitted via an antenna port.

Beamforming, which may also be referred to as spatial filtering,directional transmission, or directional reception, is a signalprocessing technique that may be used at a transmitting device or areceiving device (e.g., a base station 105, a UE 115) to shape or steeran antenna beam (e.g., a transmit beam, a receive beam) along a spatialpath between the transmitting device and the receiving device.Beamforming may be achieved by combining the signals communicated viaantenna elements of an antenna array such that some signals propagatingat particular orientations with respect to an antenna array experienceconstructive interference while others experience destructiveinterference. The adjustment of signals communicated via the antennaelements may include a transmitting device or a receiving deviceapplying amplitude offsets, phase offsets, or both to signals carriedvia the antenna elements associated with the device. The adjustmentsassociated with each of the antenna elements may be defined by abeamforming weight set associated with a particular orientation (e.g.,with respect to the antenna array of the transmitting device orreceiving device, or with respect to some other orientation).

The UEs 115 and the base stations 105 may support retransmissions ofdata to increase the likelihood that data is received successfully. HARQfeedback is one technique for increasing the likelihood that data isreceived correctly over a communication link 125. HARQ may include acombination of error detection (e.g., using a cyclic redundancy check(CRC)), forward error correction (FEC), and retransmission (e.g.,automatic repeat request (ARQ)). HARQ may improve throughput at themedium access control (MAC) layer in poor radio conditions (e.g., lowsignal-to-noise conditions). In some examples, a device may supportsame-slot HARQ feedback, where the device may provide HARQ feedback in aspecific slot for data received in a previous symbol in the slot. Inother cases, the device may provide HARQ feedback in a subsequent slot,or according to some other time interval.

In some examples, a wireless communications system may applyover-provisioning resource techniques when providing UEs 115 with adynamic grant. In some examples, a base station 105 may predict thatdata will arrive at a first UE 115 and may transmit a dynamic grant tothe first UE 115 to transmit the data over a first set of resources.Additionally, the base station 105 may transmit a conditional grant to asecond UE 115 to conditionally transmit data over a second set ofresources upon completion of a detection procedure, where the second setof resources at least partially overlap the first set of resources. Thedetection procedure may include monitoring at least a portion of thefirst set of resources for one or more OTA messages. The second UE 115may perform the detection procedure and determine whether one or moreconditions of the conditional grant are satisfied. In one example, theone or more conditions of the conditional grant may be satisfied if thesecond UE 115 fails to detect the one or more OTA message as part of thedetection procedure. If the one or more conditions of the conditionalgrant are satisfied, the second UE 115 may transmit the data over thesecond set of resources.

FIG. 2 illustrates an example of a wireless communications system 200that supports techniques for granting resources for IoT communicationsin accordance with aspects of the present disclosure. The wirelesscommunications system 200 may include a base station 105-a, a UE 115-a,and a UE 115-b. In some examples, the wireless communications system 200may implement aspects of a wireless communications system 100. Forexample, the base station 105-a, the UE 115-a, and the UE 115-b may beexamples of a base station 105 and UEs 115 as described with referenceto FIG. 1. The base station 105-a, the UE 115-a, and the UE 115-b may belocated in a coverage area 110-a.

In some examples, the wireless communications system 200 may include IoTdevices. An IoT device may be described as an everyday object that hasthe capability to transmit and receive data from a network. Moreover,IoT devices may be designed to interact with the physical world and mayinclude components such as sensors or cameras. In some examples, the UE115-a and the UE 115-b may be examples of IoT devices.

In order to transmit pending data to the base station 105-a, the UEs 115may undergo an access procedure. Performing the access procedure mayallow the UEs 115 to determine resources (e.g., time and frequencyresources) on which to transmit pending data to the base station 105-aor other UEs 115. In one example, the UEs 115 may gain access on asession-by-session basis. That is, when the UEs 115 have pending data totransmit, the UEs 115 may transmit an SR to the base station 105-a andin response to the SR, the base station 105-a may transmit a dynamicgrant to the UEs 115 indicating resources on which to transmit thepending data.

As another example, UEs 115 may gain access on a frame-by-frame basis.In such example, the UEs 115 may be configured with a configured grantoccasion at a known periodicity and may transmit pending data during theconfigured grant occasion without transmitting an SR request. In someexamples, the UEs 115 may be configured with multiple configured grantprocesses. If the UE 115 misses a configured grant occasion of a firstconfigured grant process, the UE 115 may transmit pending data during aconfigured grant occasion of a different configured grant process. Insome examples, gaining access using session-based access procedures maytake longer than gaining access using frame-based access procedures. Assuch, session-based access may be preferable when UEs 115 have a largeamount of pending data (e.g., pending data is above a threshold) withless strict latency requirements and frame-based channel access may bepreferable when UEs 115 have a small amount of pending data (e.g.,pending data is below a threshold) with more strict latencyrequirements. The problem with frame-based channel access, however, isthat if data arrives at UE 115 sporadically with relatively strictlatency requirements, configuring the UEs 115 with the number ofconfigured grant occasions to accommodate such data traffic may resultin wasted resources.

As an alternative to frame-based access, the UEs 115 may utilizeproactive dynamic grants 205. That is, the base station 105-a maypredict data traffic patterns (e.g., using artificial intelligence (AI)or machine learning) and transmit proactive dynamic grants 205 to UEs115 based on the predicted data traffic patterns. Because data mayarrive at UE 115 sporadically, the base station 105-a may incorrectlypredict the data traffic pattern and may transmit a proactive dynamicgrant 205 to UEs 115 when UEs 115 do not have pending data to transmit.As such, UEs 115 may be configured with a parameter that may allow theUEs 115 to skip the proactive dynamic grant 205 (e.g.,skipUplinkTxDynamic) in the event that the UEs 115 do not have pendingdata. However, even if UEs 115 may skip the proactive dynamic grant 205,the base station 105-a and other UEs 115 may deduce that resourcesindicated in the proactive dynamic grant 205 are occupied and may nottransmit on these resources resulting in wasted resources.

In some examples, the wireless communications system 200 may supportover-provisioning resource allocation techniques. Over-provisioningresource allocation techniques may allow the base station 105-a toschedule a UE 115 to transmit over resources where at least some of theresources are allocated to another UE 115. That is, usingover-provisioning resource allocation techniques, the base station 105-amay allocate resources to the UE 115 even if there is a chance that theUE 115's transmission may be blocked by the other UE 115. Using suchtechniques may decrease the probability of wasting resources, forexample, in the event that the UE 115 has data to transmit and the otherUE 115 does not have data to transmit.

As described herein, the base station 105-a may apply over-provisioningresource allocation techniques when providing UEs 115 with proactivedynamic grants 205. In some examples, the base station 105-a may predictthat the UE 115-a has pending data to transmit and as such, may transmita proactive dynamic grant 205 to the UE 115-a. The proactive dynamicgrant 205 may instruct the UE 115-a to transmit pending data overresources 215-a and may also include an indication to skip the proactivedynamic grant 205 if the UE 115-a does not have pending data. Moreover,the base station 105-a may transmit a conditional grant 210 to the UE115-b. The conditional grant 210 may instruct the UE 115-b to transmitpending data over the resources 215-b upon satisfaction of one or moreconditions. In some examples, the resources 215-a and the resources215-b may overlap at least partially in time and frequency. In oneexample, to determine whether the one or more conditions are met, the UE115-b may perform a detection procedure. For example, the one or moreconditions may be satisfied if the UE 115-b determines that the UE 115-ais not going to utilize the resources 215-b for transmission of pendingdata. In such cases, the detection procedure may include the UE 115-amonitoring for one or more OTA messages transmitted by the UE 115-a onat least a portion of the resources 215-a upon receiving the conditionalgrant 210. If the UE 115-b does not detect one or more OTA messages, theUE 115-b may determine that the UE 115-a is not going to utilize theresources 215-a and transmit the pending data over the resources 215-b.

In some examples, the OTA message for which the UE 115-b monitors forduring the detection procedure and the way in which the resources 215are arranged may change depending on the situation. In one example, theresources may be arranged such that resources 215-a come beforeresources 215-b in the time domain and the OTA message may be any datamessage transmitted by the UE 115-a. Upon receiving the conditionalgrant 210 from the base station 105-a, the UE 115-b may monitor for datamessages transmitted by the UE 115-b during a timing offset between theresources 215-a and the resources 215-b. If the UE 115-b does not detecta data message during the timing offset, the UE 115-b may determine thatthe UE 115-a is not going to utilize the resources 215-a and transmitthe pending data over the resources 215-b.

In another example, the resources may be arranged such that resources215-a come before resources 215-b in the time domain and the OTA messagemay be specified as an LBT transmission. The timing offset between theresources 215-a and the resources 215-b may be based on CP extensionsallocated to the UEs 115. In some examples, the base station 105-a mayallocate an earlier CP extension to the UE 115-a than the UE 115-b. Thedifference between the CP extension allocated to the UE 115-a and the CPextension allocated to the UE 115-b may be the timing offset. Uponreceiving the conditional grant 210 from the base station 105-a, the UE115-b may monitor the channel according to an LBT setup procedure (e.g.,compare the energy of the channel to an energy detection (ED) threshold)during the timing offset. If the UE 115-b determines that the UE 115-ais not going to utilize the resources 215-a based on the monitoring, theUE 115-b may transmit the pending data over the resources 215-b.

In another example, the resources may be arranged such that resources215-a come before resources 215-b in the time domain and the OTA messagemay be specified as a DMRS sequence associated with the UE 115-a. Thetiming offset between the resources 215-a and the resources 215-b may beone slot. Upon receiving the conditional grant 210 from the base station105-a, the UE 115-b may monitor for the DMRS sequence associated withthe UE 115-a during the timing offset. If the UE 115-b does not detectthe DMRS sequence associated with the UE 115-a, the UE 115-b maydetermine that the UE 115-a is not going to utilize the resources 215-aand transmit the pending data over the resources 215-b.

In another example, the base station 105-a may grant the UE 115-a withmultiple sidelink transmission opportunities for a transport block. Insuch example, the resources 215-a may include a first set of resourcesfor initial transmission of the transport block and a second set ofresources for a retransmission of the transport block. The resources 215may be arranged such that the first set of resource do not overlap theresources 215-b and come before the resources 215-b in time. Inaddition, the resources 215-b may overlap in time and frequency with thesecond set of resources. The OTA message, in this case, may be SCIassociated with the UE 115-a. Upon receiving the conditional grant 210from the base station 105-a, the UE 115-b may monitor the first set ofresources for SCI associated with the UE 115-a. If the UE 115-b does notdetect SCI associated with the UE 115-a, the UE 115-b may determine thatthe UE 115-a is not going to utilize the second set of resources andtransmit the pending data over the resources 215-b.

In another example, the OTA message may be an early occupancyindication. In such example, the base station 105-a may grant the UE115-a with additional resources for the early occupancy indication(e.g., via the proactive dynamic grant 205). That is, the resources215-a may include a first set of resources for the early occupancyindication and a second set of resources for transmitting pending data,where the first set of resources come before the second set of resourcein the time domain. In some examples, the resources 215-b may overlap intime and frequency with the second of resource, but not with the firstset of resources. In one example, the first set of resources may includea dedicated physical sidelink feedback channel (PSFCH) resource if theUE 115-a or the UE 115-b are operating in accordance to sidelink. If theUE 115-a has pending data, it may transmit the early occupancyindication (e.g., an SRS) over the first set of resources. Uponreceiving the conditional grant 210 from the base station 105-a, the UE115-b may monitor the first set of resource for the early occupancyindication. If the UE 115-b does not detect the early occupancyindication, the UE 115-b may determine that the UE 115-a is not going toutilize the second set of resources for transmitting the pending dataand transmit the pending data over the resources 215-b.

In some examples, the base station 105-a may grant the UEs 115 totransmit control signaling to the base station 105-a indicating whetherthe UEs 115 were able to utilize resources 215 for transmissions. Forexample, the base station 105-a may transmit a first grant to the UE115-a indicating physical uplink control channel (PUCCH) resources totransmit a first message indicating whether it was able to transmit overthe resources 215-a and the base station 105-a may transmit a secondgrant indicating PUCCH resources to transmit a second message indicatingwhether it was able to transmit over resources 215-b. In some examples,the UE 115-a and the UE 115-b may utilize orthogonal PUCCH resources totransmit the first message and the second message, respectively. Thefirst message and the second message may also serve as an SR in theevent that the UE 115-a or the UE 115-b was unable to transmit over theresources 215. Additionally or alternatively, the UE 115-b may receive athird grant to transmit a third message over PUCCH resources indicatingwhether its transmission over the resources 215-b was been blocked by atransmission by the UE 115-a (e.g., that the one or more conditions ofthe conditional grant 210 were satisfied). In some examples, the thirdmessage may serve as an SR in the event that the transmission by the UE115-b was blocked by the UE 115-a.

In some examples, UEs 115 may receive proactive dynamic grants 205 andconditional grants 210 via multiple downlink control information (DCIs)or a single DCI. Using multiple DCIs, the base station 105-a maytransmit a first DCI specified for the UE 115-a which includes theproactive dynamic grant 205 and may transmit a second DCI specified forthe UE 115-b which include the conditional grant 210. Using a combo DCI,the base station 105-a may transmit a single DCI specified for the UE115-a and the UE 115-b which includes the proactive dynamic grant 205and the conditional grant 210. In some examples, the base station 105-amay transmit the single DCI if the UE 115-a and the UE 115-b havesimilar physical downlink control channel (PDCCH) aggregation levels.The single DCI may be scrambled by a group common random networktemporary identifier (GC-RNTI) allocated to the UE 115-a and the UE115-b such that both the UE 115-a and the UE 115-b may recognize anddecode the single DCI. Using the techniques as described herein mayallow UEs 115 to utilize resources allocated to other UEs 115 in theevent that the other UEs 115 do not have pending data to transmit overthe allocated resources resulting in a more efficient use of resources.

FIGS. 3A, 3B, 3C, and 3D illustrate examples of detection procedures 300(e.g., a detection procedure 300-a, a detection procedure 300-b, adetection procedure 300-c, and a detection procedure 300-d) that supporttechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. In some examples, the detectionprocedure 300-a, the detection procedure 300-b, the detection procedure300-c, and the detection procedure 300-d may implement aspects of awireless communications system 100 and a wireless communications system200. For example, UEs 115 as described with reference to FIGS. 1 and 2may utilize the detection procedure 300-a, the detection procedure300-b, the detection procedure 300-c, and the detection procedure 300-dto determine whether grants (e.g., conditional grants) from the networkare valid as described herein.

FIG. 3A illustrates an example of a detection procedure 300-a thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 3A, a firstUE may receive a proactive dynamic grant indicating resources 301-a anda second UE may receive a conditional grant indicating resources 301-b.In some examples, the resources 301-a may overlap at least partiallywith the resources 301-b in a time domain and a frequency domain.Moreover, the resources 301-a may be located ahead of the resources301-b in the time domain. For example, the resources 301-b may start ata later time than the resources 301-b as designated by a timing offset305-a. The timing offset 305, in some examples, may be able toaccommodate processing delay.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 301-b upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring for oneor more data messages from the first UE during the timing offset 305-a.If the second UE fails to detect one or more data message from the firstUE during the timing offset 305-a, the second UE may determine that theone or more conditions of the conditional grant are met and transmitpending data over the resources 301-b. Alternatively, if the second UEdoes detect one or more data message from the UE 115 during the timingoffset 305-a, the second UE may determine that the one or moreconditions of the conditional grant are not met and may not transmitover the resources 301-b.

FIG. 3B illustrates an example of a detection procedure 300-b thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 3B, a firstUE and a second UE may operate over an unlicensed frequency spectrumband (e.g., 5 GHz band or 6 GHz band) and as such, may communicate inaccordance to LBT. That is, when the first UE or the second UE haspending data to transmit, the first UE or the second UE may monitor thechannel for a time period, determine whether the channel is clear basedon the monitoring, and transmit the pending data if the channel is clear(e.g., perform a channel clearance assessment (CCA)). In some examples,the first UE or the second UE may monitor the energy level of thechannel during the time period and determine if the channel is clear bycomparing the energy level of the channel to an energy detection (ED)threshold. In another example, the first UE or the second UE may monitora signal strength (e.g., signal-to-noise ratio (SNR)) of signalstransmitted during the time period and determine if the channel is clearby comparing the signal strength to a signal detect (SD) threshold.

As described herein, the first UE may receive a proactive dynamic grantindicating resources 301-c and a second UE may receive a conditionalgrant indicating resources 301-d. In some examples, the resources 301-cmay overlap at least partially with the resources 301-d in a time domainand a frequency domain. Moreover, the resources 301-c may be locatedahead of the resources 301-d in a time domain. For example, theresources 301-d may start at a later time than the resources 301-c asdesignated by a timing offset 305-b. The timing offset 305-b maycorrespond to a time for performing CCA. To achieve the time staggeringas shown in FIG. 3B, the base station may allocate an earlier CPextension to the first UE than the second UE and the difference betweenthe CP extensions of the respective UEs may be the timing offset 305-b.In some examples, the difference in CP extension between the first UEand the second UE may depend on a priority of the first UE and apriority of the second UE. For example, as the priority of the first UEincrease, the difference in the CP extension may increase.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 301-d upon satisfaction of theone or more conditions. In some examples, the second UE may determine ifthe one or more conditions are met by monitoring for CCA relatedparameters during the timing offset 305-b. That is, the second UE maymonitor the energy level of the channel or the signal strength ofsignals transmitted by the first UE during the timing offset 305-b. Asone example, if the second UE detects that the energy level of thechannel is below the ED threshold during the timing offset 305-b, thesecond UE may determine that the one or more conditions of theconditional grant are met and transmit pending data over the resources301-d. Alternatively, if the second UE detects that the energy level ofthe channel is above the ED threshold, the second UE may determine thatthe one or more conditions of the conditional grant are not met and maynot transmit over the resources 301-d. Additionally, the first UE mayhave multiple starting points ahead of the starting point of the secondUE. For example, the first UE may have three starting points before thestarting point of the second UE. That is, the first resources 301-d mayinclude resources of a physical uplink shared channel (PUSCH) 310-a, aPUSCH 310-b, and a PUSCH 310-c, where the resources of the PUSCH 310-a,the PUSCH 310-b, and the PUSCH 310-b do not overlap with resources301-d.

FIG. 3C illustrates an example of a detection procedure 300-c thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 3C, the firstUE and the second UE may operate over a licensed frequency spectrumband. The first UE may receive a proactive dynamic grant indicatingresources 301-e and a second UE may receive a conditional grantindicating resources 301-f. In some examples, the resources 301-e mayoverlap at least partially with the resources 301-f in a time domain anda frequency domain. Moreover, the resources 301-e may be located aheadof the resources 301-f in the time domain. For example, the resources301-f may start at a later time than the resources 301-e as designatedby a timing offset 305-c. The timing offset 305-c, in some examples, maybe a slot. That is, the first UE may be granted with one slot ahead ofthat of the second UE.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 301-f upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring for oneor more DMRS sequences during the timing offset 305-c, where the DMRSsequence is associated with the first UE. If the second UE fails todetect one or more DMRS sequences associated with the first UE duringthe timing offset 305-c, the second UE may determine that the one ormore conditions of the conditional grant are met and transmit pendingdata over the resources 301-f. Alternatively, if the second UE doesdetect one or more DMRS sequences associated with first UE during thetiming offset 305-c, the second UE may determine that the one or moreconditions of the conditional grant are not met and may not transmitover the resources 301-f.

FIG. 3D illustrates an example of a detection procedure 300-d thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 3D, the firstUE and the second UE may support sidelink communication. Whencommunicating via sidelink, the first UE and the second UE may exchangeSCI to inform each other of future transmissions. The first UE mayreceive a proactive dynamic grant indicating resources 301-g and asecond UE may receive a conditional grant indicating resources 301-h. Insome examples, the base station may grant the first UE with multiplesidelink transmission opportunities for a transport block (e.g., aninitial transmission and up to two retransmissions). As such, theresource 301-g may include resources 301-g-1 and resources 301-g-1. Thefirst UE may utilize the resources 301-g-1 for the initial transmissionof the transport block and may utilize the resources 301-g-2 forretransmission of the transport block. In some examples, the basestation may grant (e.g., via the conditional grant) for the second UE totransmit pending data at the first retransmission of the transportblock. That is, the resources 301-h may overlap at least partially withthe resources 301-g-2 in a time domain and a frequency domain.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 301-h upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring for SCIassociated with the first UE at the initial transmission of thetransport block by the first UE. That is, the second UE may monitorresources 301-g-1 for SCI associated with the first UE. If the second UEfails to detect SCI associated with the first UE, the second UE maydetermine that the one or more conditions of the conditional grant aremet and transmit pending data over the resources 301-h. Alternatively,if the second UE does detect SCI associated with the first UE, thesecond UE may determine that the one or more conditions of theconditional grant are not met and may not transmit over the resources301-h.

Additionally, the second UE may determine whether the one or moreconditions are satisfied by monitoring for a HARQ response towards theinitial transmission of the transport block by the first UE. In someexamples, the SCI associated with the first UE or the DCI carrying theconditional grant may indicate PSFCH resources to monitor for the HARQresponse. If the second UE detects acknowledgement (ACK) feedbacktowards the initial transmission of the transport block by the first UE,the second UE may determine that the one or more conditions of theconditional grant are met and transmit pending data over the resources301-h. Alternatively, if the second UE detects negative acknowledgement(NACK) feedback towards the initial transmission of the transport blockby the first UE, the second UE may not determine that the one or moreconditions of the conditional grant are not met and may not transmitover the resources 301-h.

FIGS. 4A, 4B, and 4C illustrate examples of detection procedures 400(e.g., a detection procedure 400-a, a detection procedure 400-b, and adetection procedure 400-c) that supports techniques for grantingresources for IoT communications in accordance with aspects of thepresent disclosure. In some examples, the detection procedure 400-a, thedetection procedure 400-b, and the detection procedure 400-c mayimplement aspects of a wireless communications system 100, a wirelesscommunications system 200, and detection procedures 300. For examples,UEs 115 as described with reference to FIGS. 1 and 2 may utilize thedetection procedure 400-a, the detection procedure 400-b, and thedetection procedure 400-c to determine whether grants (e.g., conditionalgrants) from the network are valid as described herein.

FIG. 4A illustrates an example of a detection procedure 400-a thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 4A, the firstUE may receive a proactive dynamic grant indicating resources 401-a anda second UE may receive a conditional grant indicating resources 401-b.In some examples, the base station may grant the first UE withadditional resources to transmit an early occupancy indication 405-a. Assuch, the resource 401-a may include resources 401-a-1 and resources401-a-2. The first UE may utilize the resources 401-a-1 for transmissionof the early occupancy indication 405-a and may utilize the resources401-a-2 for transmission of pending data. In some examples, theresources 401-b granted to the second UE and the resources 401-a-2granted to the first UE may have the same starting point and may overlapat least partially in a time domain and a frequency domain.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 401-b upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring for theearly occupancy indication 405-a transmitted by the first UE. That is,the second UE may monitor resources 401-a-1 for the early occupancyindication 405-a. If the second UE fails to detect the early occupancyindication 405-a, the second UE may determine that the one or moreconditions of the conditional grant are met and transmit pending dataover the resources 401-b. Alternatively, if the second UE does detectthe early occupancy indication 405-a, the second UE may determine thatthe one or more conditions of the conditional grant are not met and maynot transmit over the resources 401-b.

FIG. 4B illustrates an example of a detection procedure 400-b thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 4B, the firstUE may receive a proactive dynamic grant indicating resources 401-c anda second UE may receive a conditional grant indicating resources 401-d.In some examples, the base station may grant the first UE withadditional resources to transmit an SRS 410. As such, the resource 401-cmay include resources 401-c-1 and resources 401-c-2. The first UE mayutilize the resources 401-c-1 for transmission of the SRS and mayutilize the resources 401-c-2 for transmission of pending data. In someexamples, the resources 401-d granted to the second UE and the resources401-c-2 granted to the first UE may have the same starting point and mayoverlap at least partially in a time domain and a frequency domain.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 401-d upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring for theSRS 410 transmitted by the first UE. That is, the second UE may monitorresources 401-a-1 for the SRS 410. If the second UE fails to detect theSRS 410, the second UE may determine that the one or more conditions ofthe conditional grant are met and transmit pending data over theresources 401-d. Alternatively, if the second UE does detect the SRS410, the second UE may determine that the one or more conditions of theconditional grant are not met and may not transmit over the resources401-d.

FIG. 4C illustrates an example of a detection procedure 400-c thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. In FIG. 4C, the firstUE may receive a proactive dynamic grant indicating resources 401-e anda second UE may receive a conditional grant indicating resources 401-f.In some examples, first UE may have dedicated PSFCH resources totransmit an early occupancy indication 405-b. As such, the resource401-e may include resources 401-e-1, resources 401-e-2, and resources401-e-3. The resources 401-e-1 may include the dedicated PSFCH resourcesand the first UE may utilize the resources 401-e-1 for transmission ofthe early occupancy indication 405-b. Moreover, the first UE may utilizethe resources 401-e-2 for transmission of pending data and the second UEmay utilize the resources 4014-1 for transmission of pending data. Insome examples, the first UE and the second UE may transmit SCI over theresources 401-e-2 and the resources 4014-1, respectively, to indicatefuture reservations (e.g., reservation of resources 401-e-3 andresources 401-e-2). The resources 401-e-2 and the resources 401-e-3reserved by the first UE may have the same starting point as theresources 4014-1 and the resources 401-f-2 reserved by the second UE,respectively and may overlap at least partially in a time domain and afrequency domain.

In some examples, the conditional grant may be valid upon thesatisfaction of one or more conditions. That is, the second UE maytransmit pending data over the resources 4014-1 upon satisfaction of theone or more conditions. In some examples, the second UE may determinewhether the one or more conditions are satisfied by monitoring theresources 401-e-1 for the early occupancy indication 405-b transmittedby the first UE. If the second UE fails to detect the early occupancyindication 405-b, the second UE may determine that the one or moreconditions of the conditional grant are met and transmit pending dataover the resources 4014-1. Alternatively, if the second UE does detectthe early occupancy indication 405-b, the second UE may determine thatthe one or more conditions of the conditional grant are not met and maynot transmit over the resources 4014-1.

FIG. 5 illustrates an example of a process flow 500 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. In some examples, the processflow 500 may implement or be implemented by aspects of a wirelesscommunications system 100, a wireless communications system 200,detection procedures 300, and detection procedures 400. For example, theprocess flow 500 may be implemented by a base station 105-b, a UE 115-c,and a UE 115-d which may be examples of a base station 105 and UEs 115as described with reference to FIGS. 1 and 2. Alternative examples ofthe following may be implemented, where some steps are performed in adifferent order then described or are not performed at all. In somecases, steps may include additional features not mentioned below, orfurther steps may be added.

At 505, the UE 115-c may receive a dynamic grant from the base station105-b. The dynamic grant may schedule the UE 115-c to transmit pendingdata over a first set of resources. Additionally, the proactive dynamicgrant may include a parameter which may allow the UE 115-c to skip theproactive dynamic grant if the UE 115-c does not have pending data totransmit. In some examples, the base station 105-b may transmit theparameter as a bit field.

At 510, the UE 115-d may receive a conditional grant from the basestation 105-b. The conditional grant may schedule the UE 115-d totransmit pending data over a second set of resources conditional oncompletion of a detection procedure to monitor at least a portion of thefirst set of resources for one or more OTA messages. In some examples,the first set of resources may at least partially overlap the second setof resources (e.g., in time and frequency). The proactive dynamic grantand the conditional grant may be received as separate DCIs that areassociated with one another (e.g., coupled DCI) or may be included in asingle combo DCI. The single combo DCI may be scrambled by a GC-RNTI,where the GC-RNTI is allocated to both the UE 115-c and the UE 115-d.Using a combo DCI may save bits in time domain resource allocation(TDRA), frequency domain resource allocation (FDRA), and modulation andcoding scheme (MCS) when compared to using coupled DCIs.

In some examples, the first set of resources and the second set ofresources may be time staggered with respect to each other. For example,the starting point of the first set of resource may come prior to thestarting point of the second set of resources. The time differencebetween the starting point of the first set of resources and thestarting point of the second set of resources may be known as a timegap. In such examples, the OTA message may include one or more datamessages transmitted by the UE 115-c, SCI transmitted by the UE 115-c,an LBT transmission, or a DMRS sequence allocated to the UE 115-c. Inthe case that the OTA message is an LBT transmission, the time gap maydepend on a CP extension allocated to the UE 115-c and the UE 115-d, andin some examples, may include multiple transmission opportunities. Inthe case that the OTA is a DMRS sequence, the second set of resourcesmay be aggregated uplink slots and in some examples, the time gap mayspan a single slot.

As another example, the first set of resources may include a firstsubset of resources and a second subset of resources, where the firstsubset of resources comes before the second subset of resources and thesecond subset of resources overlaps at least partially with the secondset of resources. In such example, the OTA message may include an earlyoccupancy indication (e.g., an SRS) transmitted by the UE 115-c over thefirst subset of resources (e.g., dedicated PSFCH resources).

At 515, the UE 115-c may have pending data and potentially transmit orreceive a message indicating the UE 115-c's intention of transmittingthe pending data over the first set of resources. That is, the UE 115-cmay transmit or receive one or more OTA messages. For example, in thecase of time-staggered resources, the UE 115-c may transmit one or moredata messages over the first set of resources. As another example, theUE 115-c may transmit an early occupancy indication over the firstsubset of resources.

At 520, the UE 115-d may monitor for the one or more OTA messages aspart of the detection procedure. In some examples, the UE 115-c maymonitor for the one or more OTA messages during the time gap or the UE115-c may monitor for the one or more OTA messages during the firstsubset of resources.

At 525, the UE 115-d may determine whether one or more conditions of theconditional grant are satisfied. In some examples, the one or moreconditions may be considered satisfied if the UE 115-d fails to detectthe one or more OTA messages at 520. Alternatively, the one or moreconditions may be considered not satisfied if the UE 115-d does detectthe one or more OTA messages at 520.

At 530, the UE 115-d may potentially transmit the pending data over thesecond set of resources. In some examples, the UE 115-d may transmit thepending data over the second set of resource if the one or moreconditions of the conditional grant are satisfied and may not transmitthe pending data if the one or more conditions of the conditional grantare not satisfied.

In some examples, one or both of the UE 115-c and the UE 115-d mayreceive a first grant from the base station 105-b to transmit anindication of whether they have transmitted over granted resources(e.g., the first set of resources or the second set of resources).Additionally, the UE 115-c may receive a second grant from the basestation 105-b to transmit an indication of whether the UE 115-c'stransmission over the second set of resources was blocked by the UE115-c's transmission over the first set of resources. In some examples,these indications may serve as SRs.

FIG. 6 shows a block diagram 600 of a device 605 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The device 605 may be an exampleof aspects of a UE 115 as described herein. The device 605 may include areceiver 610, a transmitter 615, and a communications manager 620. Thedevice 605 may also include a processor. Each of these components may bein communication with one another (e.g., via one or more buses).

The receiver 610 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (e.g., control channels,data channels, information channels related to techniques for grantingresources for IoT communications). Information may be passed on to othercomponents of the device 605. The receiver 610 may utilize a singleantenna or a set of multiple antennas.

The transmitter 615 may provide a means for transmitting signalsgenerated by other components of the device 605. For example, thetransmitter 615 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (e.g., control channels, data channels, informationchannels related to techniques for granting resources for IoTcommunications). In some examples, the transmitter 615 may be co-locatedwith a receiver 610 in a transceiver module. The transmitter 615 mayutilize a single antenna or a set of multiple antennas.

The communications manager 620, the receiver 610, the transmitter 615,or various combinations thereof or various components thereof may beexamples of means for performing various aspects of techniques forgranting resources for IoT communications as described herein. Forexample, the communications manager 620, the receiver 610, thetransmitter 615, or various combinations or components thereof maysupport a method for performing one or more of the functions describedherein.

In some examples, the communications manager 620, the receiver 610, thetransmitter 615, or various combinations or components thereof may beimplemented in hardware (e.g., in communications management circuitry).The hardware may include a processor, a digital signal processor (DSP),an application-specific integrated circuit (ASIC), a field-programmablegate array (FPGA) or other programmable logic device, a discrete gate ortransistor logic, discrete hardware components, or any combinationthereof configured as or otherwise supporting a means for performing thefunctions described in the present disclosure. In some examples, aprocessor and memory coupled with the processor may be configured toperform one or more of the functions described herein (e.g., byexecuting, by the processor, instructions stored in the memory).

Additionally or alternatively, in some examples, the communicationsmanager 620, the receiver 610, the transmitter 615, or variouscombinations or components thereof may be implemented in code (e.g., ascommunications management software or firmware) executed by a processor.If implemented in code executed by a processor, the functions of thecommunications manager 620, the receiver 610, the transmitter 615, orvarious combinations or components thereof may be performed by ageneral-purpose processor, a DSP, a central processing unit (CPU), anASIC, an FPGA, or any combination of these or other programmable logicdevices (e.g., configured as or otherwise supporting a means forperforming the functions described in the present disclosure).

In some examples, the communications manager 620 may be configured toperform various operations (e.g., receiving, monitoring, transmitting)using or otherwise in cooperation with the receiver 610, the transmitter615, or both. For example, the communications manager 620 may receiveinformation from the receiver 610, send information to the transmitter615, or be integrated in combination with the receiver 610, thetransmitter 615, or both to receive information, transmit information,or perform various other operations as described herein.

The communications manager 620 may support wireless communication at asecondary UE in accordance with examples as disclosed herein. Forexample, the communications manager 620 may be configured as orotherwise support a means for receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The communicationsmanager 620 may be configured as or otherwise support a means formonitoring, as part of the detection procedure, for the one or more OTAsignals from the primary UE, the one or more OTA signals indicative ofwhether the second set of resources is used by the primary UE. Thecommunications manager 620 may be configured as or otherwise support ameans for determining, based on the monitoring, that one or moreconditions for transmission of the one or more data messages have beensatisfied via the detection procedure. The communications manager 620may be configured as or otherwise support a means for transmitting theone or more data messages over the first set of resources based on theone or more conditions being satisfied.

By including or configuring the communications manager 620 in accordancewith examples as described herein, the device 605 (e.g., a processorcontrolling or otherwise coupled to the receiver 610, the transmitter615, the communications manager 620, or a combination thereof) maysupport techniques for more efficient utilization of communicationresources. Using the techniques as described herein may allow devices605 (e.g., UEs) to utilize resources allocated to other devices 605 inthe event that the other devices 605 do not have pending data totransmit over the allocated resources resulting in a more efficient useof resources.

FIG. 7 shows a block diagram 700 of a device 705 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The device 705 may be an exampleof aspects of a device 605 or a UE 115 as described herein. The device705 may include a receiver 710, a transmitter 715, and a communicationsmanager 720. The device 705 may also include a processor. Each of thesecomponents may be in communication with one another (e.g., via one ormore buses).

The receiver 710 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (e.g., control channels,data channels, information channels related to techniques for grantingresources for IoT communications). Information may be passed on to othercomponents of the device 705. The receiver 710 may utilize a singleantenna or a set of multiple antennas.

The transmitter 715 may provide a means for transmitting signalsgenerated by other components of the device 705. For example, thetransmitter 715 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (e.g., control channels, data channels, informationchannels related to techniques for granting resources for IoTcommunications). In some examples, the transmitter 715 may be co-locatedwith a receiver 710 in a transceiver module. The transmitter 715 mayutilize a single antenna or a set of multiple antennas.

The device 705, or various components thereof, may be an example ofmeans for performing various aspects of techniques for grantingresources for IoT communications as described herein. For example, thecommunications manager 720 may include a UE conditional grant component725, a monitoring component 730, a grant validation component 735, amessage transmitter 740, or any combination thereof. The communicationsmanager 720 may be an example of aspects of a communications manager 620as described herein. In some examples, the communications manager 720,or various components thereof, may be configured to perform variousoperations (e.g., receiving, monitoring, transmitting) using orotherwise in cooperation with the receiver 710, the transmitter 715, orboth. For example, the communications manager 720 may receiveinformation from the receiver 710, send information to the transmitter715, or be integrated in combination with the receiver 710, thetransmitter 715, or both to receive information, transmit information,or perform various other operations as described herein.

The communications manager 720 may support wireless communication at asecondary UE in accordance with examples as disclosed herein. The UEconditional grant component 725 may be configured as or otherwisesupport a means for receiving, at the secondary UE, a first grant toconditionally transmit one or more data messages over a first set ofresources, transmission of the one or more data messages conditional oncompletion, by the secondary UE, of a detection procedure to monitor asecond set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources. The monitoring component 730 may be configuredas or otherwise support a means for monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE. The grant validation component 735 may beconfigured as or otherwise support a means for determining, based on themonitoring, that one or more conditions for transmission of the one ormore data messages have been satisfied via the detection procedure. Themessage transmitter 740 may be configured as or otherwise support ameans for transmitting the one or more data messages over the first setof resources based on the one or more conditions being satisfied.

FIG. 8 shows a block diagram 800 of a communications manager 820 thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. The communicationsmanager 820 may be an example of aspects of a communications manager620, a communications manager 720, or both, as described herein. Thecommunications manager 820, or various components thereof, may be anexample of means for performing various aspects of techniques forgranting resources for IoT communications as described herein. Forexample, the communications manager 820 may include a UE conditionalgrant component 825, a monitoring component 830, a grant validationcomponent 835, a message transmitter 840, a UE transmission confirmationcomponent 845, a UE blocked transmission component 850, a feedbackresource component 855, or any combination thereof. Each of thesecomponents may communicate, directly or indirectly, with one another(e.g., via one or more buses).

The communications manager 820 may support wireless communication at asecondary UE in accordance with examples as disclosed herein. The UEconditional grant component 825 may be configured as or otherwisesupport a means for receiving, at the secondary UE, a first grant toconditionally transmit one or more data messages over a first set ofresources, transmission of the one or more data messages conditional oncompletion, by the secondary UE, of a detection procedure to monitor asecond set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources. The monitoring component 830 may be configuredas or otherwise support a means for monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE. The grant validation component 835 may beconfigured as or otherwise support a means for determining, based on themonitoring, that one or more conditions for transmission of the one ormore data messages have been satisfied via the detection procedure. Themessage transmitter 840 may be configured as or otherwise support ameans for transmitting the one or more data messages over the first setof resources based on the one or more conditions being satisfied.

In some examples, to support determining that the one or more conditionshave been satisfied, the grant validation component 835 may beconfigured as or otherwise support a means for failing to detect the oneor more OTA signals from the primary UE.

In some examples, to support monitoring for the one or more OTA signalsfrom the primary UE, the monitoring component 830 may be configured asor otherwise support a means for monitoring, as part of the detectionprocedure, during a time gap that extends from a beginning of the secondset of resources and a subsequent beginning of the first set ofresources.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources during the time gap forthe one or more OTA signals by the primary UE, where the one or moreconditions are satisfied via the detection procedure upon failure by thesecondary UE to detect the one or more OTA signals by the primary UEduring the time gap.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources for an LBT transmissionduring the time gap, where the time gap is defined by a CP extension foruse by the primary UE to transmit the LBT transmission, where the one ormore conditions are satisfied via the detection procedure upon failureby the secondary UE to detect an energy level during the time gap thatis above a threshold.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources during the time gap forthe one or more OTA signals by the primary UE, where the time gapincludes multiple transmission opportunities for the primary UE, wherethe one or more conditions are satisfied via the detection procedureupon failure by the secondary UE to detect any of the one or more OTAsignals by the primary UE during the time gap.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources during the time gap forone or more DMRS sequences associated with the primary UE, where thesecond set of resources are aggregated uplink slots and the time gap isat least one slot in duration, where the one or more conditions aresatisfied via the detection procedure upon failure by the secondary UEto detect the one or more DMRS sequences during the time gap.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources during the time gap fora SCI message by the primary UE, where the one or more conditions aresatisfied via the detection procedure upon failure by the secondary UEto detect the SCI message during the time gap.

In some examples, to support monitoring during the time gap, themonitoring component 830 may be configured as or otherwise support ameans for monitoring the second set of resources during the time gap forboth a SCI message by the primary UE and an ACK feedback messageassociated with the SCI message, where the one or more conditions aresatisfied via the detection procedure upon detection by the secondary UEof the ACK feedback message during the time gap.

In some examples, the feedback resource component 855 may be configuredas or otherwise support a means for determining a resource to monitorfor the ACK feedback message by either decoding the SCI message orthrough the first grant.

In some examples, to support monitoring for the one or more OTA signalsfrom the primary UE, the monitoring component 830 may be configured asor otherwise support a means for monitoring, as part of the detectionprocedure, for an early occupancy indication transmitted by the primaryUE prior in time to both the first set of resources and the second setof resources.

In some examples, to support monitoring for the early occupancyindication, the monitoring component 830 may be configured as orotherwise support a means for monitoring for an SRS from the primary UE,where the one or more conditions are satisfied via the detectionprocedure upon failure by the secondary UE to detect the SRS as theearly occupancy indication from the primary UE.

In some examples, to support monitoring for the early occupancyindication, the monitoring component 830 may be configured as orotherwise support a means for monitoring a sidelink feedback channelresource for the early occupancy indication from the primary UE, wherethe one or more conditions are satisfied via the detection procedureupon failure based on a content of the sidelink feedback channelresource.

In some examples, the UE transmission confirmation component 845 may beconfigured as or otherwise support a means for receiving, via the firstgrant, a first uplink control channel resource for transmission by thesecondary UE of a first indication confirming transmission of the one ormore data messages over the first set of resources, where the secondgrant also includes a second uplink control channel resource fortransmission by the primary UE of a second indication confirmingtransmission over the second set of resources. In some examples, thefirst indication by the secondary UE is an SR for retransmission of theone or more data messages.

In some examples, the UE blocked transmission component 850 may beconfigured as or otherwise support a means for receiving, via the firstgrant, a first uplink control channel resource for transmission by thesecondary UE of a message indicating whether the one or more conditionsare satisfied.

In some examples, to support receiving the first grant, the UEconditional grant component 825 may be configured as or otherwisesupport a means for receiving a DCI message that includes both the firstgrant and the second grant.

In some examples, the DCI message is scrambled by a GC-RNTI that isallocated to at least the secondary UE and the primary UE as supportingnon-provisioning proactive dynamic grants and that have downlink controlchannel aggregation levels that are within common thresholds.

FIG. 9 shows a diagram of a system 900 including a device 905 thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. The device 905 may bean example of or include the components of a device 605, a device 705,or a UE 115 as described herein. The device 905 may communicatewirelessly with one or more base stations 105, UEs 115, or anycombination thereof. The device 905 may include components forbi-directional voice and data communications including components fortransmitting and receiving communications, such as a communicationsmanager 920, an input/output (I/O) controller 910, a transceiver 915, anantenna 925, a memory 930, code 935, and a processor 940. Thesecomponents may be in electronic communication or otherwise coupled(e.g., operatively, communicatively, functionally, electronically,electrically) via one or more buses (e.g., a bus 945).

The I/O controller 910 may manage input and output signals for thedevice 905. The I/O controller 910 may also manage peripherals notintegrated into the device 905. In some cases, the I/O controller 910may represent a physical connection or port to an external peripheral.In some cases, the I/O controller 910 may utilize an operating systemsuch as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, oranother known operating system. Additionally or alternatively, the I/Ocontroller 910 may represent or interact with a modem, a keyboard, amouse, a touchscreen, or a similar device. In some cases, the I/Ocontroller 910 may be implemented as part of a processor, such as theprocessor 940. In some cases, a user may interact with the device 905via the I/O controller 910 or via hardware components controlled by theI/O controller 910.

In some cases, the device 905 may include a single antenna 925. However,in some other cases, the device 905 may have more than one antenna 925,which may be capable of concurrently transmitting or receiving multiplewireless transmissions. The transceiver 915 may communicatebi-directionally, via the one or more antennas 925, wired, or wirelesslinks as described herein. For example, the transceiver 915 mayrepresent a wireless transceiver and may communicate bi-directionallywith another wireless transceiver. The transceiver 915 may also includea modem to modulate the packets, to provide the modulated packets to oneor more antennas 925 for transmission, and to demodulate packetsreceived from the one or more antennas 925. The transceiver 915, or thetransceiver 915 and one or more antennas 925, may be an example of atransmitter 615, a transmitter 715, a receiver 610, a receiver 710, orany combination thereof or component thereof, as described herein.

The memory 930 may include random access memory (RAM) and read-onlymemory (ROM). The memory 930 may store computer-readable,computer-executable code 935 including instructions that, when executedby the processor 940, cause the device 905 to perform various functionsdescribed herein. The code 935 may be stored in a non-transitorycomputer-readable medium such as system memory or another type ofmemory. In some cases, the code 935 may not be directly executable bythe processor 940 but may cause a computer (e.g., when compiled andexecuted) to perform functions described herein. In some cases, thememory 930 may contain, among other things, a basic I/O system (BIOS)which may control basic hardware or software operation such as theinteraction with peripheral components or devices.

The processor 940 may include an intelligent hardware device (e.g., ageneral-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, anFPGA, a programmable logic device, a discrete gate or transistor logiccomponent, a discrete hardware component, or any combination thereof).In some cases, the processor 940 may be configured to operate a memoryarray using a memory controller. In some other cases, a memorycontroller may be integrated into the processor 940. The processor 940may be configured to execute computer-readable instructions stored in amemory (e.g., the memory 930) to cause the device 905 to perform variousfunctions (e.g., functions or tasks supporting techniques for grantingresources for IoT communications). For example, the device 905 or acomponent of the device 905 may include a processor 940 and memory 930coupled to the processor 940, the processor 940 and memory 930configured to perform various functions described herein.

The communications manager 920 may support wireless communication at asecondary UE in accordance with examples as disclosed herein. Forexample, the communications manager 920 may be configured as orotherwise support a means for receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The communicationsmanager 920 may be configured as or otherwise support a means formonitoring, as part of the detection procedure, for the one or more OTAsignals from the primary UE, the one or more OTA signals indicative ofwhether the second set of resources is used by the primary UE. Thecommunications manager 920 may be configured as or otherwise support ameans for determining, based on the monitoring, that one or moreconditions for transmission of the one or more data messages have beensatisfied via the detection procedure. The communications manager 920may be configured as or otherwise support a means for transmitting theone or more data messages over the first set of resources based on theone or more conditions being satisfied.

By including or configuring the communications manager 920 in accordancewith examples as described herein, the device 905 may support techniquesfor reduced latency and improved utilization of processing capability.By utilizing a proactive dynamic grants for scheduling transmissions,devices 905 may not transmit an SR to the network as is done with otherdynamic grants thereby decreasing latency.

In some examples, the communications manager 920 may be configured toperform various operations (e.g., receiving, monitoring, transmitting)using or otherwise in cooperation with the transceiver 915, the one ormore antennas 925, or any combination thereof. Although thecommunications manager 920 is illustrated as a separate component, insome examples, one or more functions described with reference to thecommunications manager 920 may be supported by or performed by theprocessor 940, the memory 930, the code 935, or any combination thereof.For example, the code 935 may include instructions executable by theprocessor 940 to cause the device 905 to perform various aspects oftechniques for granting resources for IoT communications as describedherein, or the processor 940 and the memory 930 may be otherwiseconfigured to perform or support such operations.

FIG. 10 shows a block diagram 1000 of a device 1005 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The device 1005 may be anexample of aspects of a base station 105 as described herein. The device1005 may include a receiver 1010, a transmitter 1015, and acommunications manager 1020. The device 1005 may also include aprocessor. Each of these components may be in communication with oneanother (e.g., via one or more buses).

The receiver 1010 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (e.g., control channels,data channels, information channels related to techniques for grantingresources for IoT communications). Information may be passed on to othercomponents of the device 1005. The receiver 1010 may utilize a singleantenna or a set of multiple antennas.

The transmitter 1015 may provide a means for transmitting signalsgenerated by other components of the device 1005. For example, thetransmitter 1015 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (e.g., control channels, data channels, informationchannels related to techniques for granting resources for IoTcommunications). In some examples, the transmitter 1015 may beco-located with a receiver 1010 in a transceiver module. The transmitter1015 may utilize a single antenna or a set of multiple antennas.

The communications manager 1020, the receiver 1010, the transmitter1015, or various combinations thereof or various components thereof maybe examples of means for performing various aspects of techniques forgranting resources for IoT communications as described herein. Forexample, the communications manager 1020, the receiver 1010, thetransmitter 1015, or various combinations or components thereof maysupport a method for performing one or more of the functions describedherein.

In some examples, the communications manager 1020, the receiver 1010,the transmitter 1015, or various combinations or components thereof maybe implemented in hardware (e.g., in communications managementcircuitry). The hardware may include a processor, a DSP, an ASIC, anFPGA or other programmable logic device, a discrete gate or transistorlogic, discrete hardware components, or any combination thereofconfigured as or otherwise supporting a means for performing thefunctions described in the present disclosure. In some examples, aprocessor and memory coupled with the processor may be configured toperform one or more of the functions described herein (e.g., byexecuting, by the processor, instructions stored in the memory).

Additionally or alternatively, in some examples, the communicationsmanager 1020, the receiver 1010, the transmitter 1015, or variouscombinations or components thereof may be implemented in code (e.g., ascommunications management software or firmware) executed by a processor.If implemented in code executed by a processor, the functions of thecommunications manager 1020, the receiver 1010, the transmitter 1015, orvarious combinations or components thereof may be performed by ageneral-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or anycombination of these or other programmable logic devices (e.g.,configured as or otherwise supporting a means for performing thefunctions described in the present disclosure).

In some examples, the communications manager 1020 may be configured toperform various operations (e.g., receiving, monitoring, transmitting)using or otherwise in cooperation with the receiver 1010, thetransmitter 1015, or both. For example, the communications manager 1020may receive information from the receiver 1010, send information to thetransmitter 1015, or be integrated in combination with the receiver1010, the transmitter 1015, or both to receive information, transmitinformation, or perform various other operations as described herein.

The communications manager 1020 may support wireless communication at abase station in accordance with examples as disclosed herein. Forexample, the communications manager 1020 may be configured as orotherwise support a means for transmitting, to a secondary UE, a firstgrant for conditional transmission of one or more data messages over afirst set of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The communicationsmanager 1020 may be configured as or otherwise support a means fortransmitting the second grant to the primary UE, the second grantincluding a parameter indicating that transmission by the primary UEusing the second set of resources is optional.

By including or configuring the communications manager 1020 inaccordance with examples as described herein, the device 1005 (e.g., aprocessor controlling or otherwise coupled to the receiver 1010, thetransmitter 1015, the communications manager 1020, or a combinationthereof) may support techniques for more efficient utilization ofcommunication resources.

FIG. 11 shows a block diagram 1100 of a device 1105 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The device 1105 may be anexample of aspects of a device 1005 or a base station 105 as describedherein. The device 1105 may include a receiver 1110, a transmitter 1115,and a communications manager 1120. The device 1105 may also include aprocessor. Each of these components may be in communication with oneanother (e.g., via one or more buses).

The receiver 1110 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (e.g., control channels,data channels, information channels related to techniques for grantingresources for IoT communications). Information may be passed on to othercomponents of the device 1105. The receiver 1110 may utilize a singleantenna or a set of multiple antennas.

The transmitter 1115 may provide a means for transmitting signalsgenerated by other components of the device 1105. For example, thetransmitter 1115 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (e.g., control channels, data channels, informationchannels related to techniques for granting resources for IoTcommunications). In some examples, the transmitter 1115 may beco-located with a receiver 1110 in a transceiver module. The transmitter1115 may utilize a single antenna or a set of multiple antennas.

The device 1105, or various components thereof, may be an example ofmeans for performing various aspects of techniques for grantingresources for IoT communications as described herein. For example, thecommunications manager 1120 may include a conditional grant component1125 a dynamic grant component 1130, or any combination thereof. Thecommunications manager 1120 may be an example of aspects of acommunications manager 1020 as described herein. In some examples, thecommunications manager 1120, or various components thereof, may beconfigured to perform various operations (e.g., receiving, monitoring,transmitting) using or otherwise in cooperation with the receiver 1110,the transmitter 1115, or both. For example, the communications manager1120 may receive information from the receiver 1110, send information tothe transmitter 1115, or be integrated in combination with the receiver1110, the transmitter 1115, or both to receive information, transmitinformation, or perform various other operations as described herein.

The communications manager 1120 may support wireless communication at abase station in accordance with examples as disclosed herein. Theconditional grant component 1125 may be configured as or otherwisesupport a means for transmitting, to a secondary UE, a first grant forconditional transmission of one or more data messages over a first setof resources, transmission of the one or more data messages conditionalon completion, by the secondary UE, of a detection procedure to monitora second set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources. The dynamic grant component 1130 may beconfigured as or otherwise support a means for transmitting the secondgrant to the primary UE, the second grant including a parameterindicating that transmission by the primary UE using the second set ofresources is optional.

FIG. 12 shows a block diagram 1200 of a communications manager 1220 thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. The communicationsmanager 1220 may be an example of aspects of a communications manager1020, a communications manager 1120, or both, as described herein. Thecommunications manager 1220, or various components thereof, may be anexample of means for performing various aspects of techniques forgranting resources for IoT communications as described herein. Forexample, the communications manager 1220 may include a conditional grantcomponent 1225, a dynamic grant component 1230, a transmissionconfirmation component 1235, a blocked transmission component 1240, ascheduling component 1245, or any combination thereof. Each of thesecomponents may communicate, directly or indirectly, with one another(e.g., via one or more buses).

The communications manager 1220 may support wireless communication at abase station in accordance with examples as disclosed herein. Theconditional grant component 1225 may be configured as or otherwisesupport a means for transmitting, to a secondary UE, a first grant forconditional transmission of one or more data messages over a first setof resources, transmission of the one or more data messages conditionalon completion, by the secondary UE, of a detection procedure to monitora second set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, where the first set of resources at least partially overlaps thesecond set of resources. The dynamic grant component 1230 may beconfigured as or otherwise support a means for transmitting the secondgrant to the primary UE, the second grant including a parameterindicating that transmission by the primary UE using the second set ofresources is optional.

In some examples, to support transmitting the second grant to theprimary UE, the dynamic grant component 1230 may be configured as orotherwise support a means for transmitting the parameter as a bit fieldwhich indicates that use of the second set of resources by the primaryUE is based on whether the primary UE has content to transmit during thesecond set of resources.

In some examples, to support transmitting the first grant forconditional transmission of the one or more data messages, theconditional grant component 1225 may be configured as or otherwisesupport a means for transmitting the first grant as a conditional grantthat is conditional on the secondary UE failing to detect, via thedetection procedure, use of the second set of resources by the primaryUE.

In some examples, a time gap extends from a beginning of the second setof resources and a subsequent beginning of the first set of resources.

In some examples, to support transmitting the first grant forconditional transmission of the one or more data messages, theconditional grant component 1225 may be configured as or otherwisesupport a means for transmitting the first grant as a conditional grantthat is conditional on the secondary UE failing to detect, via thedetection procedure, one or more OTA signals by the primary UE duringthe time gap.

In some examples, to support transmitting the first grant forconditional transmission of the one or more data messages, theconditional grant component 1225 may be configured as or otherwisesupport a means for transmitting the first grant as a conditional grantthat is conditional on the secondary UE failing to detect, via thedetection procedure, an LBT transmission by the primary UE during thetime gap, where the time gap is defined by a CP extension for use by theprimary UE to transmit the LBT transmission.

In some examples, the time gap includes multiple transmissionopportunities for the primary UE. In some examples, the second set ofresources are aggregated uplink slots and the time gap is at least oneslot in duration.

In some examples, the transmission confirmation component 1235 may beconfigured as or otherwise support a means for transmitting, via thefirst grant, a first uplink control channel resource for use by thesecondary UE to transmit a first indication confirming transmission ofthe one or more data messages over the first set of resources. In someexamples, the transmission confirmation component 1235 may be configuredas or otherwise support a means for transmitting, via the second grant,a second uplink control channel resource for use by the primary UE totransmit a second indication confirming transmission over the second setof resources.

In some examples, the scheduling component 1245 may be configured as orotherwise support a means for receiving the first indication from thesecondary UE via an SR for retransmission of the one or more datamessages.

In some examples, the blocked transmission component 1240 may beconfigured as or otherwise support a means for transmitting, via thefirst grant, a first uplink control channel resource for use by thesecondary UE to transmit a message indicating whether one or moreconditions associated with the conditional transmission of the one ormore data messages over the first set of resources are satisfied. Insome examples, the first grant and the second grant are transmitted in asame DCI message.

In some examples, the DCI message is scrambled by a GC-RNTI that isallocated to at least the secondary UE and the primary UE as supportingnon-provisioning proactive dynamic grants and that have downlink controlchannel aggregation levels that are within common thresholds.

FIG. 13 shows a diagram of a system 1300 including a device 1305 thatsupports techniques for granting resources for IoT communications inaccordance with aspects of the present disclosure. The device 1305 maybe an example of or include the components of a device 1005, a device1105, or a base station 105 as described herein. The device 1305 maycommunicate wirelessly with one or more base stations 105, UEs 115, orany combination thereof. The device 1305 may include components forbi-directional voice and data communications including components fortransmitting and receiving communications, such as a communicationsmanager 1320, a network communications manager 1310, a transceiver 1315,an antenna 1325, a memory 1330, code 1335, a processor 1340, and aninter-station communications manager 1345. These components may be inelectronic communication or otherwise coupled (e.g., operatively,communicatively, functionally, electronically, electrically) via one ormore buses (e.g., a bus 1350).

The network communications manager 1310 may manage communications with acore network 130 (e.g., via one or more wired backhaul links). Forexample, the network communications manager 1310 may manage the transferof data communications for client devices, such as one or more UEs 115.

In some cases, the device 1305 may include a single antenna 1325.However, in some other cases the device 1305 may have more than oneantenna 1325, which may be capable of concurrently transmitting orreceiving multiple wireless transmissions. The transceiver 1315 maycommunicate bi-directionally, via the one or more antennas 1325, wired,or wireless links as described herein. For example, the transceiver 1315may represent a wireless transceiver and may communicatebi-directionally with another wireless transceiver. The transceiver 1315may also include a modem to modulate the packets, to provide themodulated packets to one or more antennas 1325 for transmission, and todemodulate packets received from the one or more antennas 1325. Thetransceiver 1315, or the transceiver 1315 and one or more antennas 1325,may be an example of a transmitter 1015, a transmitter 1115, a receiver1010, a receiver 1110, or any combination thereof or component thereof,as described herein.

The memory 1330 may include RAM and ROM. The memory 1330 may storecomputer-readable, computer-executable code 1335 including instructionsthat, when executed by the processor 1340, cause the device 1305 toperform various functions described herein. The code 1335 may be storedin a non-transitory computer-readable medium such as system memory oranother type of memory. In some cases, the code 1335 may not be directlyexecutable by the processor 1340 but may cause a computer (e.g., whencompiled and executed) to perform functions described herein. In somecases, the memory 1330 may contain, among other things, a BIOS which maycontrol basic hardware or software operation such as the interactionwith peripheral components or devices.

The processor 1340 may include an intelligent hardware device (e.g., ageneral-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, anFPGA, a programmable logic device, a discrete gate or transistor logiccomponent, a discrete hardware component, or any combination thereof).In some cases, the processor 1340 may be configured to operate a memoryarray using a memory controller. In some other cases, a memorycontroller may be integrated into the processor 1340. The processor 1340may be configured to execute computer-readable instructions stored in amemory (e.g., the memory 1330) to cause the device 1305 to performvarious functions (e.g., functions or tasks supporting techniques forgranting resources for IoT communications). For example, the device 1305or a component of the device 1305 may include a processor 1340 andmemory 1330 coupled to the processor 1340, the processor 1340 and memory1330 configured to perform various functions described herein.

The inter-station communications manager 1345 may manage communicationswith other base stations 105, and may include a controller or schedulerfor controlling communications with UEs 115 in cooperation with otherbase stations 105. For example, the inter-station communications manager1345 may coordinate scheduling for transmissions to UEs 115 for variousinterference mitigation techniques such as beamforming or jointtransmission. In some examples, the inter-station communications manager1345 may provide an X2 interface within an LTE/LTE-A wirelesscommunications network technology to provide communication between basestations 105.

The communications manager 1320 may support wireless communication at abase station in accordance with examples as disclosed herein. Forexample, the communications manager 1320 may be configured as orotherwise support a means for transmitting, to a secondary UE, a firstgrant for conditional transmission of one or more data messages over afirst set of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The communicationsmanager 1320 may be configured as or otherwise support a means fortransmitting the second grant to the primary UE, the second grantincluding a parameter indicating that transmission by the primary UEusing the second set of resources is optional.

By including or configuring the communications manager 1320 inaccordance with examples as described herein, the device 1305 maysupport techniques for reduced latency and more efficient utilization ofcommunication resources.

In some examples, the communications manager 1320 may be configured toperform various operations (e.g., receiving, monitoring, transmitting)using or otherwise in cooperation with the transceiver 1315, the one ormore antennas 1325, or any combination thereof. Although thecommunications manager 1320 is illustrated as a separate component, insome examples, one or more functions described with reference to thecommunications manager 1320 may be supported by or performed by theprocessor 1340, the memory 1330, the code 1335, or any combinationthereof. For example, the code 1335 may include instructions executableby the processor 1340 to cause the device 1305 to perform variousaspects of techniques for granting resources for IoT communications asdescribed herein, or the processor 1340 and the memory 1330 may beotherwise configured to perform or support such operations.

FIG. 14 shows a flowchart illustrating a method 1400 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1400 may be implemented by a UE or its components as described herein.For example, the operations of the method 1400 may be performed by a UE115 as described with reference to FIGS. 1 through 9. In some examples,a UE may execute a set of instructions to control the functionalelements of the UE to perform the described functions. Additionally oralternatively, the UE may perform aspects of the described functionsusing special-purpose hardware.

At 1405, the method may include receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The operations of1405 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1405 may be performed bya UE conditional grant component 825 as described with reference to FIG.8.

At 1410, the method may include monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE. The operations of 1410 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1410 may be performed by a monitoring component 830as described with reference to FIG. 8.

At 1415, the method may include determining, based on the monitoring,that one or more conditions for transmission of the one or more datamessages have been satisfied via the detection procedure. The operationsof 1415 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1415 may beperformed by a grant validation component 835 as described withreference to FIG. 8.

At 1420, the method may include transmitting the one or more datamessages over the first set of resources based on the one or moreconditions being satisfied. The operations of 1420 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1420 may be performed by a message transmitter 840as described with reference to FIG. 8.

FIG. 15 shows a flowchart illustrating a method 1500 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1500 may be implemented by a UE or its components as described herein.For example, the operations of the method 1500 may be performed by a UE115 as described with reference to FIGS. 1 through 9. In some examples,a UE may execute a set of instructions to control the functionalelements of the UE to perform the described functions. Additionally oralternatively, the UE may perform aspects of the described functionsusing special-purpose hardware.

At 1505, the method may include receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The operations of1505 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1505 may be performed bya UE conditional grant component 825 as described with reference to FIG.8.

At 1510, the method may include monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE. The operations of 1510 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1510 may be performed by a monitoring component 830as described with reference to FIG. 8.

At 1515, the method may include determining, based on the monitoring,that one or more conditions for transmission of the one or more datamessages have been satisfied via the detection procedure, wheredetermining that the one or more conditions have been satisfied includesfailing to detect the one or more OTA signals from the primary UE. Theoperations of 1515 may be performed in accordance with examples asdisclosed herein. In some examples, aspects of the operations of 1515may be performed by a grant validation component 835 as described withreference to FIG. 8.

At 1520, the method may include transmitting the one or more datamessages over the first set of resources based on the one or moreconditions being satisfied. The operations of 1520 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1520 may be performed by a message transmitter 840as described with reference to FIG. 8.

FIG. 16 shows a flowchart illustrating a method 1600 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1600 may be implemented by a UE or its components as described herein.For example, the operations of the method 1600 may be performed by a UE115 as described with reference to FIGS. 1 through 9. In some examples,a UE may execute a set of instructions to control the functionalelements of the UE to perform the described functions. Additionally oralternatively, the UE may perform aspects of the described functionsusing special-purpose hardware.

At 1605, the method may include receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The operations of1605 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1605 may be performed bya UE conditional grant component 825 as described with reference to FIG.8.

At 1610, the method may include monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE and during a time gap that extends from abeginning of the second set of resources and a subsequent beginning ofthe first set of resources. The operations of 1610 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1610 may be performed by a monitoring component 830as described with reference to FIG. 8.

At 1615, the method may include determining, based on the monitoring,that one or more conditions for transmission of the one or more datamessages have been satisfied via the detection procedure. The operationsof 1615 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1615 may beperformed by a grant validation component 835 as described withreference to FIG. 8.

At 1620, the method may include transmitting the one or more datamessages over the first set of resources based on the one or moreconditions being satisfied. The operations of 1620 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1620 may be performed by a message transmitter 840as described with reference to FIG. 8.

FIG. 17 shows a flowchart illustrating a method 1700 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1700 may be implemented by a UE or its components as described herein.For example, the operations of the method 1700 may be performed by a UE115 as described with reference to FIGS. 1 through 9. In some examples,a UE may execute a set of instructions to control the functionalelements of the UE to perform the described functions. Additionally oralternatively, the UE may perform aspects of the described functionsusing special-purpose hardware.

At 1705, the method may include receiving, at the secondary UE, a firstgrant to conditionally transmit one or more data messages over a firstset of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The operations of1705 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1705 may be performed bya UE conditional grant component 825 as described with reference to FIG.8.

At 1710, the method may include monitoring, as part of the detectionprocedure, for an early occupancy indication transmitted by the primaryUE prior in time to both the first set of resources and the second setof resources. The operations of 1710 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1710 may be performed by a monitoring component 830 asdescribed with reference to FIG. 8.

At 1715, the method may include determining, based on the monitoring,that one or more conditions for transmission of the one or more datamessages have been satisfied via the detection procedure. The operationsof 1715 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1715 may beperformed by a grant validation component 835 as described withreference to FIG. 8.

At 1720, the method may include transmitting the one or more datamessages over the first set of resources based on the one or moreconditions being satisfied. The operations of 1720 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1720 may be performed by a message transmitter 840as described with reference to FIG. 8.

FIG. 18 shows a flowchart illustrating a method 1800 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1800 may be implemented by a base station or its components as describedherein. For example, the operations of the method 1800 may be performedby a base station 105 as described with reference to FIGS. 1 through 5and 10 through 13. In some examples, a base station may execute a set ofinstructions to control the functional elements of the base station toperform the described functions. Additionally or alternatively, the basestation may perform aspects of the described functions usingspecial-purpose hardware.

At 1805, the method may include transmitting, to a secondary UE, a firstgrant for conditional transmission of one or more data messages over afirst set of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources. The operations of1805 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1805 may be performed bya conditional grant component 1225 as described with reference to FIG.12.

At 1810, the method may include transmitting the second grant to theprimary UE, the second grant including a parameter indicating thattransmission by the primary UE using the second set of resources isoptional. The operations of 1810 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1810 may be performed by a dynamic grant component 1230 asdescribed with reference to FIG. 12.

FIG. 19 shows a flowchart illustrating a method 1900 that supportstechniques for granting resources for IoT communications in accordancewith aspects of the present disclosure. The operations of the method1900 may be implemented by a base station or its components as describedherein. For example, the operations of the method 1900 may be performedby a base station 105 as described with reference to FIGS. 1 through 5and 10 through 13. In some examples, a base station may execute a set ofinstructions to control the functional elements of the base station toperform the described functions. Additionally or alternatively, the basestation may perform aspects of the described functions usingspecial-purpose hardware.

At 1905, the method may include transmitting, to a secondary UE, a firstgrant for conditional transmission of one or more data messages over afirst set of resources, transmission of the one or more data messagesconditional on completion, by the secondary UE, of a detection procedureto monitor a second set of resources for one or more OTA signalstransmitted by a primary UE pursuant to a second grant that isassociated with the first grant, where the first set of resources atleast partially overlaps the second set of resources, and where thefirst grant is transmitted as a conditional grant that is conditional onthe secondary UE failing to detect, via the detection procedure, use ofthe second set of resources by the primary UE. The operations of 1905may be performed in accordance with examples as disclosed herein. Insome examples, aspects of the operations of 1905 may be performed by aconditional grant component 1225 as described with reference to FIG. 12.

At 1910, the method may include transmitting the second grant to theprimary UE, the second grant including a parameter indicating thattransmission by the primary UE using the second set of resources isoptional. The operations of 1910 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1910 may be performed by a dynamic grant component 1230 asdescribed with reference to FIG. 12.

The following provides an overview of aspects of the present disclosure:

Aspect 1: A method for wireless communication at a secondary UE,comprising: receiving, at the secondary UE, a first grant toconditionally transmit one or more data messages over a first set ofresources, transmission of the one or more data messages conditional oncompletion, by the secondary UE, of a detection procedure to monitor asecond set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, wherein the first set of resources at least partially overlapsthe second set of resources; monitoring, as part of the detectionprocedure, for the one or more OTA signals from the primary UE, the oneor more OTA signals indicative of whether the second set of resources isused by the primary UE; determining, based at least in part on themonitoring, that one or more conditions for transmission of the one ormore data messages have been satisfied via the detection procedure; andtransmitting the one or more data messages over the first set ofresources based at least in part on the one or more conditions beingsatisfied.

Aspect 2: The method of aspect 1, wherein determining that the one ormore conditions have been satisfied comprises: failing to detect the oneor more OTA signals from the primary UE.

Aspect 3: The method of any of aspects 1 and 2, wherein monitoring forthe one or more OTA signals from the primary UE comprises: monitoring,as part of the detection procedure, during a time gap that extends froma beginning of the second set of resources and a subsequent beginning ofthe first set of resources.

Aspect 4: The method of aspect 3, wherein monitoring during the time gapcomprises: monitoring the second set of resources during the time gapfor the one or more OTA signals by the primary UE, wherein the one ormore conditions are satisfied via the detection procedure upon failureby the secondary UE to detect the one or more OTA signals by the primaryUE during the time gap.

Aspect 5: The method of aspect 3, wherein monitoring during the time gapcomprises: monitoring the second set of resources for an LBTtransmission during the time gap, wherein the time gap is defined by aCP extension for use by the primary UE to transmit the LBT transmission,wherein the one or more conditions are satisfied via the detectionprocedure upon failure by the secondary UE to detect an energy levelduring the time gap that is above a threshold.

Aspect 6: The method of any of aspects 3 and 5, wherein monitoringduring the time gap comprises: monitoring the second set of resourcesduring the time gap for the one or more OTA signals by the primary UE,wherein the time gap includes multiple transmission opportunities forthe primary UE, wherein the one or more conditions are satisfied via thedetection procedure upon failure by the secondary UE to detect any ofthe one or more OTA signals by the primary UE during the time gap.

Aspect 7: The method of aspect 3, wherein monitoring during the time gapcomprises: monitoring the second set of resources during the time gapfor one or more DMRS sequences associated with the primary UE, whereinthe second set of resources are aggregated uplink slots and the time gapis at least one slot in duration, wherein the one or more conditions aresatisfied via the detection procedure upon failure by the secondary UEto detect the one or more DMRS sequences during the time gap.

Aspect 8: The method of aspect 3, wherein monitoring during the time gapcomprises: monitoring the second set of resources during the time gapfor a SCI message by the primary UE, wherein the one or more conditionsare satisfied via the detection procedure upon failure by the secondaryUE to detect the SCI message during the time gap.

Aspect 9: The method of any of the aspects 3 and 8, wherein monitoringduring the time gap comprises: monitoring the second set of resourcesduring the time gap for both a SCI message by the primary UE and an ACKfeedback message associated with the SCI message, wherein the one ormore conditions are satisfied via the detection procedure upon detectionby the secondary UE of the ACK feedback message during the time gap.

Aspect 10: The method of aspect 9, further comprising: determining aresource to monitor for the ACK feedback message by either decoding theSCI message or through the first grant.

Aspect 11: The method of aspect 1, wherein monitoring for the one ormore OTA signals from the primary UE comprises: monitoring, as part ofthe detection procedure, for an early occupancy indication transmittedby the primary UE prior in time to both the first set of resources andthe second set of resources.

Aspect 12: The method of aspect 11, wherein monitoring for the earlyoccupancy indication comprises: monitoring for an SRS from the primaryUE, wherein the one or more conditions are satisfied via the detectionprocedure upon failure by the secondary UE to detect the SRS as theearly occupancy indication from the primary UE.

Aspect 13: The method of aspect 11, wherein monitoring for the earlyoccupancy indication comprises: monitoring a sidelink feedback channelresource for the early occupancy indication from the primary UE, whereinthe one or more conditions are satisfied via the detection procedureupon failure based at least in part on a content of the sidelinkfeedback channel resource.

Aspect 14: The method of any of aspects 1 through 13, furthercomprising: receiving, via the first grant, a first uplink controlchannel resource for transmission by the secondary UE of a firstindication confirming transmission of the one or more data messages overthe first set of resources, wherein the second grant also includes asecond uplink control channel resource for transmission by the primaryUE of a second indication confirming transmission over the second set ofresources.

Aspect 15: The method of aspect 14, wherein the first indication by thesecondary UE is an SR for retransmission of the one or more datamessages.

Aspect 16: The method of any of aspects 1 through 15, furthercomprising: receiving, via the first grant, a first uplink controlchannel resource for transmission by the secondary UE of a messageindicating whether the one or more conditions are satisfied.

Aspect 17: The method of any of aspects 1 through 16, wherein receivingthe first grant comprises: receiving a DCI message that includes boththe first grant and the second grant.

Aspect 18: The method of aspect 17, wherein the DCI message is scrambledby a GC-RNTI that is allocated to at least the secondary UE and theprimary UE as supporting non-provisioning proactive dynamic grants andthat have downlink control channel aggregation levels that are withincommon thresholds.

Aspect 19: A method for wireless communication at a base station,comprising: transmitting, to a secondary UE, a first grant forconditional transmission of one or more data messages over a first setof resources, transmission of the one or more data messages conditionalon completion, by the secondary UE, of a detection procedure to monitora second set of resources for one or more OTA signals transmitted by aprimary UE pursuant to a second grant that is associated with the firstgrant, wherein the first set of resources at least partially overlapsthe second set of resources; and transmitting the second grant to theprimary UE, the second grant including a parameter indicating thattransmission by the primary UE using the second set of resources isoptional.

Aspect 20: The method of aspect 19, wherein transmitting the secondgrant to the primary UE comprises: transmitting the parameter as a bitfield which indicates that use of the second set of resources by theprimary UE is based on whether the primary UE has content to transmitduring the second set of resources.

Aspect 21: The method of any of aspects 19 and 20, wherein transmittingthe first grant for conditional transmission of the one or more datamessages comprises: transmitting the first grant as a conditional grantthat is conditional on the secondary UE failing to detect, via thedetection procedure, use of the second set of resources by the primaryUE.

Aspect 22: The method of any of aspects 19 through 21, wherein a timegap extends from a beginning of the second set of resources and asubsequent beginning of the first set of resources.

Aspect 23: The method of aspect 22, wherein transmitting the first grantfor conditional transmission of the one or more data messages comprises:transmitting the first grant as a conditional grant that is conditionalon the secondary UE failing to detect, via the detection procedure, oneor more OTA signals by the primary UE during the time gap.

Aspect 24: The method of aspect 22, wherein transmitting the first grantfor conditional transmission of the one or more data messages comprises:transmitting the first grant as a conditional grant that is conditionalon the secondary UE failing to detect, via the detection procedure, anLBT transmission by the primary UE during the time gap, wherein the timegap is defined by a CP extension for use by the primary UE to transmitthe LBT transmission.

Aspect 25: The method of any of aspects 22 and 24, wherein the time gapincludes multiple transmission opportunities for the primary UE.

Aspect 26: The method of any of aspects 22, 24, and 25, wherein thesecond set of resources are aggregated uplink slots and the time gap isat least one slot in duration.

Aspect 27: The method of any of aspects 19 through 26, furthercomprising: transmitting, via the first grant, a first uplink controlchannel resource for use by the secondary UE to transmit a firstindication confirming transmission of the one or more data messages overthe first set of resources; and transmitting, via the second grant, asecond uplink control channel resource for use by the primary UE totransmit a second indication confirming transmission over the second setof resources.

Aspect 28: The method of aspect 27, further comprising: receiving thefirst indication from the secondary UE via an SR for retransmission ofthe one or more data messages.

Aspect 29: The method of any of aspects 19 through 28, furthercomprising: transmitting, via the first grant, a first uplink controlchannel resource for use by the secondary UE to transmit a messageindicating whether one or more conditions associated with theconditional transmission of the one or more data messages over the firstset of resources are satisfied.

Aspect 30: The method of any of aspects 19 through 29, wherein the firstgrant and the second grant are transmitted in a same DCI message.

Aspect 31: The method of aspect 30, wherein the DCI message is scrambledby a GC-RNTI that is allocated to at least the secondary UE and theprimary UE as supporting non-provisioning proactive dynamic grants andthat have downlink control channel aggregation levels that are withincommon thresholds.

Aspect 32: An apparatus for wireless communication at a secondary UE,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform a method of any of aspects 1 through 18.

Aspect 33: An apparatus for wireless communication at a secondary UE,comprising at least one means for performing a method of any of aspects1 through 18.

Aspect 34: A non-transitory computer-readable medium storing code forwireless communication at a secondary UE, the code comprisinginstructions executable by a processor to perform a method of any ofaspects 1 through 18.

Aspect 35: An apparatus for wireless communication at a base station,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform a method of any of aspects 19 through 31.

Aspect 36: An apparatus for wireless communication at a base station,comprising at least one means for performing a method of any of aspects19 through 31.

Aspect 37: A non-transitory computer-readable medium storing code forwireless communication at a base station, the code comprisinginstructions executable by a processor to perform a method of any ofaspects 19 through 31.

It should be noted that the methods described herein describe possibleimplementations, and that the operations and the steps may be rearrangedor otherwise modified and that other implementations are possible.Further, aspects from two or more of the methods may be combined.

Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may bedescribed for purposes of example, and LTE, LTE-A, LTE-A Pro, or NRterminology may be used in much of the description, the techniquesdescribed herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NRnetworks. For example, the described techniques may be applicable tovarious other wireless communications systems such as Ultra MobileBroadband (UMB), Institute of Electrical and Electronics Engineers(IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, aswell as other systems and radio technologies not explicitly mentionedherein.

Information and signals described herein may be represented using any ofa variety of different technologies and techniques. For example, data,instructions, commands, information, signals, bits, symbols, and chipsthat may be referenced throughout the description may be represented byvoltages, currents, electromagnetic waves, magnetic fields or particles,optical fields or particles, or any combination thereof.

The various illustrative blocks and components described in connectionwith the disclosure herein may be implemented or performed with ageneral-purpose processor, a DSP, an ASIC, a CPU, an FPGA or otherprogrammable logic device, discrete gate or transistor logic, discretehardware components, or any combination thereof designed to perform thefunctions described herein. A general-purpose processor may be amicroprocessor, but in the alternative, the processor may be anyprocessor, controller, microcontroller, or state machine. A processormay also be implemented as a combination of computing devices (e.g., acombination of a DSP and a microprocessor, multiple microprocessors, oneor more microprocessors in conjunction with a DSP core, or any othersuch configuration).

The functions described herein may be implemented in hardware, softwareexecuted by a processor, firmware, or any combination thereof. Ifimplemented in software executed by a processor, the functions may bestored on or transmitted over as one or more instructions or code on acomputer-readable medium. Other examples and implementations are withinthe scope of the disclosure and appended claims. For example, due to thenature of software, functions described herein may be implemented usingsoftware executed by a processor, hardware, firmware, hardwiring, orcombinations of any of these. Features implementing functions may alsobe physically located at various positions, including being distributedsuch that portions of functions are implemented at different physicallocations.

Computer-readable media includes both non-transitory computer storagemedia and communication media including any medium that facilitatestransfer of a computer program from one place to another. Anon-transitory storage medium may be any available medium that may beaccessed by a general-purpose or special-purpose computer. By way ofexample, and not limitation, non-transitory computer-readable media mayinclude RAM, ROM, electrically erasable programmable ROM (EEPROM), flashmemory, compact disk (CD) ROM or other optical disk storage, magneticdisk storage or other magnetic storage devices, or any othernon-transitory medium that may be used to carry or store desired programcode means in the form of instructions or data structures and that maybe accessed by a general-purpose or special-purpose computer, or ageneral-purpose or special-purpose processor. Also, any connection isproperly termed a computer-readable medium. For example, if the softwareis transmitted from a website, server, or other remote source using acoaxial cable, fiber optic cable, twisted pair, digital subscriber line(DSL), or wireless technologies such as infrared, radio, and microwave,then the coaxial cable, fiber optic cable, twisted pair, DSL, orwireless technologies such as infrared, radio, and microwave areincluded in the definition of computer-readable medium. Disk and disc,as used herein, include CD, laser disc, optical disc, digital versatiledisc (DVD), floppy disk and Blu-ray disc where disks usually reproducedata magnetically, while discs reproduce data optically with lasers.Combinations of the above are also included within the scope ofcomputer-readable media.

As used herein, including in the claims, “or” as used in a list of items(e.g., a list of items prefaced by a phrase such as “at least one of” or“one or more of”) indicates an inclusive list such that, for example, alist of at least one of A, B, or C means A or B or C or AB or AC or BCor ABC (i.e., A and B and C). Also, as used herein, the phrase “basedon” shall not be construed as a reference to a closed set of conditions.For example, an example step that is described as “based on condition A”may be based on both a condition A and a condition B without departingfrom the scope of the present disclosure. In other words, as usedherein, the phrase “based on” shall be construed in the same manner asthe phrase “based at least in part on.”

The term “determine” or “determining” encompasses a wide variety ofactions and, therefore, “determining” can include calculating,computing, processing, deriving, investigating, looking up (such as vialooking up in a table, a database or another data structure),ascertaining and the like. Also, “determining” can include receiving(such as receiving information), accessing (such as accessing data in amemory) and the like. Also, “determining” can include resolving,selecting, choosing, establishing and other such similar actions.

In the appended figures, similar components or features may have thesame reference label. Further, various components of the same type maybe distinguished by following the reference label by a dash and a secondlabel that distinguishes among the similar components. If just the firstreference label is used in the specification, the description isapplicable to any one of the similar components having the same firstreference label irrespective of the second reference label, or othersubsequent reference label.

The description set forth herein, in connection with the appendeddrawings, describes example configurations and does not represent allthe examples that may be implemented or that are within the scope of theclaims. The term “example” used herein means “serving as an example,instance, or illustration,” and not “preferred” or “advantageous overother examples.” The detailed description includes specific details forthe purpose of providing an understanding of the described techniques.These techniques, however, may be practiced without these specificdetails. In some instances, known structures and devices are shown inblock diagram form in order to avoid obscuring the concepts of thedescribed examples.

The description herein is provided to enable a person having ordinaryskill in the art to make or use the disclosure. Various modifications tothe disclosure will be apparent to a person having ordinary skill in theart, and the generic principles defined herein may be applied to othervariations without departing from the scope of the disclosure. Thus, thedisclosure is not limited to the examples and designs described hereinbut is to be accorded the broadest scope consistent with the principlesand novel features disclosed herein.

What is claimed is:
 1. A method for wireless communication at asecondary user equipment (UE), comprising: receiving, at the secondaryUE, a first grant to conditionally transmit one or more data messagesover a first set of resources, transmission of the one or more datamessages conditional on completion, by the secondary UE, of a detectionprocedure to monitor a second set of resources for one or moreover-the-air signals transmitted by a primary UE pursuant to a secondgrant that is associated with the first grant, wherein the first set ofresources at least partially overlaps the second set of resources;monitoring, as part of the detection procedure, for the one or moreover-the-air signals from the primary UE, the one or more over-the-airsignals indicative of whether the second set of resources is used by theprimary UE; determining, based at least in part on the monitoring, thatone or more conditions for transmission of the one or more data messageshave been satisfied via the detection procedure; and transmitting theone or more data messages over the first set of resources based at leastin part on the one or more conditions being satisfied.
 2. The method ofclaim 1, wherein determining that the one or more conditions have beensatisfied comprises: failing to detect the one or more over-the-airsignals from the primary UE.
 3. The method of claim 1, whereinmonitoring for the one or more over-the-air signals from the primary UEcomprises: monitoring, as part of the detection procedure, during a timegap that extends from a beginning of the second set of resources and asubsequent beginning of the first set of resources.
 4. The method ofclaim 3, wherein monitoring during the time gap comprises: monitoringthe second set of resources during the time gap for the one or moreover-the-air signals by the primary UE, wherein the one or moreconditions are satisfied via the detection procedure upon failure by thesecondary UE to detect the one or more over-the-air signals by theprimary UE during the time gap.
 5. The method of claim 3, whereinmonitoring during the time gap comprises: monitoring the second set ofresources for a listen-before-talk transmission during the time gap,wherein the time gap is defined by a cyclic prefix extension for use bythe primary UE to transmit the listen-before-talk transmission, whereinthe one or more conditions are satisfied via the detection procedureupon failure by the secondary UE to detect an energy level during thetime gap that is above a threshold.
 6. The method of claim 3, whereinmonitoring during the time gap comprises: monitoring the second set ofresources during the time gap for the one or more over-the-air signalsby the primary UE, wherein the time gap includes multiple transmissionopportunities for the primary UE, wherein the one or more conditions aresatisfied via the detection procedure upon failure by the secondary UEto detect any of the one or more over-the-air signals by the primary UEduring the time gap.
 7. The method of claim 3, wherein monitoring duringthe time gap comprises: monitoring the second set of resources duringthe time gap for one or more demodulation reference signal sequencesassociated with the primary UE, wherein the second set of resources areaggregated uplink slots and the time gap is at least one slot induration, wherein the one or more conditions are satisfied via thedetection procedure upon failure by the secondary UE to detect the oneor more demodulation reference signal sequences during the time gap. 8.The method of claim 3, wherein monitoring during the time gap comprises:monitoring the second set of resources during the time gap for asidelink control information message by the primary UE, wherein the oneor more conditions are satisfied via the detection procedure uponfailure by the secondary UE to detect the sidelink control informationmessage during the time gap.
 9. The method of claim 3, whereinmonitoring during the time gap comprises: monitoring the second set ofresources during the time gap for both a sidelink control informationmessage by the primary UE and an acknowledgement (ACK) feedback messageassociated with the sidelink control information message, wherein theone or more conditions are satisfied via the detection procedure upondetection by the secondary UE of the ACK feedback message during thetime gap.
 10. The method of claim 9, further comprising: determining aresource to monitor for the ACK feedback message by either decoding thesidelink control information message or through the first grant.
 11. Themethod of claim 1, wherein monitoring for the one or more over-the-airsignals from the primary UE comprises: monitoring, as part of thedetection procedure, for an early occupancy indication transmitted bythe primary UE prior in time to both the first set of resources and thesecond set of resources.
 12. The method of claim 11, wherein monitoringfor the early occupancy indication comprises: monitoring for a soundingreference signal from the primary UE, wherein the one or more conditionsare satisfied via the detection procedure upon failure by the secondaryUE to detect the sounding reference signal as the early occupancyindication from the primary UE.
 13. The method of claim 11, whereinmonitoring for the early occupancy indication comprises: monitoring asidelink feedback channel resource for the early occupancy indicationfrom the primary UE, wherein the one or more conditions are satisfiedvia the detection procedure upon failure based at least in part on acontent of the sidelink feedback channel resource.
 14. The method ofclaim 1, further comprising: receiving, via the first grant, a firstuplink control channel resource for transmission by the secondary UE ofa first indication confirming transmission of the one or more datamessages over the first set of resources, wherein the second grant alsoincludes a second uplink control channel resource for transmission bythe primary UE of a second indication confirming transmission over thesecond set of resources.
 15. The method of claim 14, wherein the firstindication by the secondary UE is a scheduling request forretransmission of the one or more data messages.
 16. The method of claim1, further comprising: receiving, via the first grant, a first uplinkcontrol channel resource for transmission by the secondary UE of amessage indicating whether the one or more conditions are satisfied. 17.The method of claim 1, wherein receiving the first grant comprises:receiving a downlink control information message that includes both thefirst grant and the second grant.
 18. The method of claim 17, whereinthe downlink control information message is scrambled by a group commonrandom network temporary identifier (GC-RNTI) that is allocated to atleast the secondary UE and the primary UE as supporting non-provisioningproactive dynamic grants and that have downlink control channelaggregation levels that are within common thresholds.
 19. A method forwireless communication at a base station, comprising: transmitting, to asecondary user equipment (UE), a first grant for conditionaltransmission of one or more data messages over a first set of resources,transmission of the one or more data messages conditional on completion,by the secondary UE, of a detection procedure to monitor a second set ofresources for one or more over-the-air signals transmitted by a primaryUE pursuant to a second grant that is associated with the first grant,wherein the first set of resources at least partially overlaps thesecond set of resources; and transmitting the second grant to theprimary UE, the second grant including a parameter indicating thattransmission by the primary UE using the second set of resources isoptional.
 20. The method of claim 19, wherein transmitting the firstgrant for conditional transmission of the one or more data messagescomprises: transmitting the first grant as a conditional grant that isconditional on the secondary UE failing to detect, via the detectionprocedure, use of the second set of resources by the primary UE.
 21. Themethod of claim 19, wherein a time gap extends from a beginning of thesecond set of resources and a subsequent beginning of the first set ofresources.
 22. The method of claim 21, wherein transmitting the firstgrant for conditional transmission of the one or more data messagescomprises: transmitting the first grant as a conditional grant that isconditional on the secondary UE failing to detect, via the detectionprocedure, one or more over-the-air signals by the primary UE during thetime gap.
 23. The method of claim 21, wherein transmitting the firstgrant for conditional transmission of the one or more data messagescomprises: transmitting the first grant as a conditional grant that isconditional on the secondary UE failing to detect, via the detectionprocedure, a listen-before-talk transmission by the primary UE duringthe time gap, wherein the time gap is defined by a cyclic prefixextension for use by the primary UE to transmit the listen-before-talktransmission.
 24. The method of claim 19, further comprising:transmitting, via the first grant, a first uplink control channelresource for use by the secondary UE to transmit a first indicationconfirming transmission of the one or more data messages over the firstset of resources; and transmitting, via the second grant, a seconduplink control channel resource for use by the primary UE to transmit asecond indication confirming transmission over the second set ofresources.
 25. The method of claim 24, further comprising: receiving thefirst indication from the secondary UE via a scheduling request forretransmission of the one or more data messages.
 26. The method of claim19, further comprising: transmitting, via the first grant, a firstuplink control channel resource for use by the secondary UE to transmita message indicating whether one or more conditions associated with theconditional transmission of the one or more data messages over the firstset of resources are satisfied.
 27. The method of claim 19, wherein thefirst grant and the second grant are transmitted in a same downlinkcontrol information message.
 28. The method of claim 27, wherein thedownlink control information message is scrambled by a group commonrandom network temporary identifier (GC-RNTI) that is allocated to atleast the secondary UE and the primary UE as supporting non-provisioningproactive dynamic grants and that have downlink control channelaggregation levels that are within common thresholds.
 29. An apparatusfor wireless communication at a secondary user equipment (UE),comprising: a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to: receive, at the secondary UE, a first grant toconditionally transmit one or more data messages over a first set ofresources, transmission of the one or more data messages conditional oncompletion, by the secondary UE, of a detection procedure to monitor asecond set of resources for one or more over-the-air signals transmittedby a primary UE pursuant to a second grant that is associated with thefirst grant, wherein the first set of resources at least partiallyoverlaps the second set of resources; monitor, as part of the detectionprocedure, for the one or more over-the-air signals from the primary UE,the one or more over-the-air signals indicative of whether the secondset of resources is used by the primary UE; determine, based at least inpart on the monitoring, that one or more conditions for transmission ofthe one or more data messages have been satisfied via the detectionprocedure; and transmit the one or more data messages over the first setof resources based at least in part on the one or more conditions beingsatisfied.
 30. An apparatus for wireless communication at a basestation, comprising: a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to: transmit, to a secondary user equipment (UE), afirst grant for conditional transmission of one or more data messagesover a first set of resources, transmission of the one or more datamessages conditional on completion, by the secondary UE, of a detectionprocedure to monitor a second set of resources for one or moreover-the-air signals transmitted by a primary UE pursuant to a secondgrant that is associated with the first grant, wherein the first set ofresources at least partially overlaps the second set of resources; andtransmit the second grant to the primary UE, the second grant includinga parameter indicating that transmission by the primary UE using thesecond set of resources is optional.